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a way to count from $82 to $512

A cube has side length aa. The side lengths are decreased to 20% of their original size. Write an expression in simplest form for the volume of the new cube in terms of aa.

8 increased by three times a number

10 times as many as 6 hundreds is 60 hundreds

If oranges cost $0.75 for 1/5 of a dozen, how many oranges can you buy for $3.00

In the 1970s, due to world events, there was a gasoline shortage in the United States. There were often long lines of cars waiting at gas stations.

The sum of a block of land's length and width is 30m. If x = the width the expression for the land's length is 30 - x. Given the length and width must be positive values, solve an appropriate inequality to find the possible values of x.

Jacqueline wants to travel to Oregon. She rents a car for $50, plus $0.10 per miles. Jacqueline paid a total of $195. How many miles did she drive?

25 1/2 divided by 6 In this math equation I don't know how to do it

What is three and one-eights minus one and seven-eights?

Solve 5x-4=5 (x-3) + 11