Simplify the following expression - 5x to the 2power + 2 + 10x to the 2 power - 6x

5. Shirley buys a fax machine and sells it to De at a gain of 25% on the cost price. Devi then ses the fax machine to Amirah at a loss of 250 on the price at which she buys it from Shirley. If Amirah pays $360 for the fax machine.

Whats the unit rate of 30 bottles of water for $4.80

A car is traveling at a speed of 63 kilometers per hour. What is the car's speed in kilometers per minute? How many kilometers will travel in 5 minutes?

In ΔKLM, the measure of ∠M=90°, LK = 25, KM = 7, and ML = 24. What ratio represents the cosine of ∠L?

Up and Running Auto Shop keeps track of their regular customers' data to see if there is a relationship between the life of a car's engine (y) and the number of times the oil is changed (x).

James tosses a coin 40 times and gets 26 heads and 14 tails. what is the relative frequency of tails? A 14% B 35% C 50% D 65%

How do you regroup 42-15

7k:3=21. What is the value of k?

Which of the pairs of angles are vertical angles and thus congruent?

3r + 7r, Solve for r