Solve for r.

4r-9s=K

The table indicates Xavier's cell phone use over the last four months. Positive values indicate the number of minutes he went over his allotted time, and negative values indicate the number of minutes he was under.

An elephant walks into a store and buys 9 bags of peanuts for the same price. He also decides he wants to buy a hat for $6.35. If the elephant spent a total of $20.75, how much did each bag of peanuts cost?

when you reverse the digits in a certain 2 digit number you decrease its value by 81 what is the number if you sum of its digits is 9?

Farmer Smith Jr is putting together fruit baskets. He has 240 oranges and 150 grapefruits. What is the largest number of baskets he can put together so that he can have the same number of oranges in each basket and the same number of grapefruits in

Something ft = 7 yd

Jims fish bowl contains x tetras, 3 goldfish, and 5 platies. He removes one fish from the fish bowl at random. If the probability of removing a gold fish from the bowl is 1 out of 3, how many tetras does jim have.

The amount Troy charges to mow a lawn is proportional to the time it takes him to mow the lawn. Troy charges $30 to mow a lawn that took him 1.5 hours to mow.

Consider (2x-1) + 2>x+1. Use the addition or subtraction property of inequality to solve for x.

19/3 (write the improper fraction as a mixed or whole number.)

Randy wants trail mix for his hiking trip. The ready-made trail mix costs $8.95 for 1.5 pounds. The costs of the bulk ingredients to make one pound of trail mix are as follows: salted peanuts-$1.25, raisins-$1.70, sunflower seeds-$0.50, cashews-$0.