A cube has side length
a. The side lengths are decreased to 30% of their original size. Write an expression in simplest form for the volume of the new cube in terms of
a.

.027(a^3)

Step-by-step explanation:

The volume of a cube is s^3, where s is the sidelength

We plug in .3a for s, because the sidelength has been reduced to 30% of a.

We get (.3a)^3 = .027(a^3)

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt