Find the percent change in price

a. a prices increases from $12 to $15 and

b. a price descreases from $20 to $12

Perform the indicated operation and write the answer in the form a + bi. 4 - 5 6 + 7i 11 13 58 13 58 11 85 + 85 58 + i 13 13 11 58

the number 18 can be written as the sum of nine consecutive integers. what is he product of these integers?

The profit at a factory that makes CD's can be computed using the linear equation p = 2.5d - 1000 where p is the profit and d is the number of CD's sold. What is the slope and what does it represent?

Rachel is running the Challenge of Champions obstacle race at her summer camp. She runs 7/8 of a mile, but then she twists her ankle while going up the Mounds of Doom. Rachel still has 5/8 of a mile left to run, so she drops out of the race.

One week 72 people got a speeding ticket. the next week only 36 people got a speeding ticket. what is the percent of change in spending tickets

A family has five members a mom, a dad two sisters, and a brother. The family lines up single file. What is the probability that the brother is at the front of the line?

Rearrange the formula to make t the subject: S=d/t

If klm~ pqr with a scale factor of 3:5, find the perimeter of pqr

Amelia is wrapping ribbon around a circular present that has a diameter of 4 inches. If she wants to wrap the present three complete times, how long of a piece of ribbon will she need? Round to the nearest inch

12500,-2500,500,-100 what are the next two numbers