18 tens 20 ones equal what hundreds

A new sidewalk will be 4 feet wide, 100 feet long and filled to a depth of 6 inches 0.5 foot with concrete how many cubic yards of concrete are needed

A rectangle length is 12 more inches than the width. The perimeter is 7 times the width. What is the rectangle length?

What is the measure of an angle that is it's own complement?

Why is 130 oz bigger than 8 lbs

What's the ratio of 153:53

Your boss gives you $10000 and wants to know how many bananas you can afford. The only banana dealer in town sells bananas at a starting price of $1, but for each subsequent banana he adds 1% to the price of the previous banana you purchased.

David orders a total of 15 bags of wood that weigh a total of 63.75 lb. how much does one bag of wood weigh?

Sam packed 42kg of rice into one big bag and 6 small ones which are of the same size. the big bag contained 3/7 of the rice. how many kilograms of rice did each small bag contained?

Which of the following expressions is written in scientific notation? 0.3 x 104 2 x 10-5 10 x 103 12 x 10-3

What is the slope of the line? y+3 = - 4 (9x+7)