A student's cost for last semester at her community college was $2500. She spent $325 of that on books. What percent of last semester's college costs was spent on books?

What is the definition of probability?

20 - 4x = 2 (4 - 8x) This needs solving

Jacob, who is four years old, decides to walk on the conveyor belt in the "wrong" direction (that is, in the direction opposite to which he would travel if standing still).

A retailer buys a coat in bulk at a unit price of $45. The coat is marked up to 28% to sell in the store. What is the price of the coat in the store?

Is it Exponential distribution? or Geometric distribution? The life times, Y in years of low-grade lightbulbs follow an exponential distribution with a mean of 0.7 years.

Can you guys give me step by step on how to solve this ... ik the answer. "infinitely many solutions" I need the STEPS 5 + x - 12 = x - 7

A company's sales decreased by 8% this year, to $9015. What were their sales last year? (Round your answer to the nearest penny.) My answer was 9,736.2, but the correct answer was 9798.91. Could someone explain how did they get to 9798.91?

Find the difference (2ab+7a+1) - (8ab+9)

Use four 8's to make 8

Terri brought 1.74 meters of rope. Gracie brought 1.64 meters of rope. Who brought more rope