It took John 12 hours riding his bike to make the round trip to his uncle's. If he averaged 20 mph out and 30 mph back, how long did he travel each way? (Round answer to nearest tenth.)

Refer to the following conditional statement: If a and b are odd integers, then a • b is an odd integer. Which shows the hypothesis? A. a and b are not odd integers B. a • b is not an odd integer C. a and b are odd integers D.

What is the rate of 135 pitches to 45 strikes?

A runner finished a total of 1,500 kilometers in races before retiring. She finished thirty-two 15-kilometer races. The rest of her races were 10 - kilometer races how many of her races were 10 - kilometer races?

In February 1981 there were 28 days all in complete weeks. There are 7 days in a complete week. How many weeks were there in february 1981

Kristof is writing a book and tracks the number of hours he spends writing. He writes for 1.25 hours before breakfast each day, and has a set amount of time each afternoon to write.

Rahzel wants to determine how much gasoline he and his wife use in a month. He calculated that he used 78 1/3 gallons of gas last month. Rahzel's wife used 41 3/8 gallons of gas last month. How much total gas did Rahzel and his wife use last month.

To win the small county lottery, one must correctly select 3 numbers from 30 numbers. the order in which the selection is made does not matter. how many different selections are possible?

Naya Ironside is a Viking chieftain that is approaching the entrance of a river. The river is defended by guard towers on each riverbank.

Leonard solved this problem. Daryn paid $358.80 for shipping costs to ship 130 boxes for his company. How much did Daryn pay to ship each box? Leonard thought the answer was $2.76. Is Leonard's answer reasonable? A.

Which property can be used to remove parentheses in the expression 1.7 (x+9)