Which expression is not equivalent to the expression 18-3x-9-6x?

an aquarium holds 11.24 cubic. feet of water and 2.3 feet long and 1.2 feet wide. what is its depth? round your answer to the nearest whole number

A lumberman stacks planks of wood, starting with 30 planks in a row. Each row he stacks has one less plank than the row below it. The last row he stacks has 15 planks. How many rows of planks has he stacked? 12 15 16 18

Solve. 2 = 4 times quantity z 1

Evaluate 4|x| + 5|y| given that x=8 and y = - 7

5+3 (y-4) = 5 (y+2) - y how to solve this

The sum of a number and its opposite is always equal to zero. what situation models this property of addition.

Consider the rectangular prism with length 5 in., width 8 in., and height 9 in. Will tripling one of the dimensions of the rectangular prism triple the surface area of the prism? Justify your response.

The question says~ Find the number that makes the ratio equivalent to 1:4 ... 4:?

E equations. 2. 12 = 71-/5p+91

Miguel is making smoothies out of yogurt and juice to serve his friends, and he needs to make 12 cups. the ratio of yogurt to juice is 2 cups to 1 cup. how much yogurt will he use