Answer:
A, B, C, D
Step-by-step explanation:
A is equal to 54, B is equal to 23, C is equal to 72, and D is equal to 84.
2x+2 would be the expression
14,500/258 is 56.2015504 blah blah blah. You can't have a fifth of a uniform. I would interpret it as they have a little money left over, but they can't buy another uniform.
So your answer is 56 uniforms.
Doubling the side-lengths will multiply the area by four.
Proof:
Let the side-lengths of the rectangle by x and y. Clearly, the area will be x*y=xy. The new rectangle will have side-lengths 2x and 2y, and thus area 2x*2y=4xy. 4xy/xy=4 - hence, the new rectangle has four times the area of the old one.
