7. Which of the following equations is

perpendicular to the line y = 2x + 8?

a. y = - x + b

b. y = 2x + b

c. y = 5x + b

d. y = - x + b

Evaluate the expression: 2,322 - 27

X/2 + x/5 = 5/4 show work if you can

The ratio of girls to boys is 3 to 4. If there are 48 boys, how many girls are there? A. 24 B. 40 C. 47 D. 36

The temperature on Sunday was - 15 Celsius. the temperature on monday was 12 degrees less than the temperature on sunday. what was the temperautre on monday?

What are the values of a1 and r of the geometric series? 2 - 2 + 2 - 2 + 2 A. a1 = 2 and r = - 2 B. a1 = - 2 and r = 2 C. a1 = - 1 and r = 2 D. a1 = 2 and r = - 1

A machine produces a total of 12,000 bolts a day, which are on the average 3% defective. Find the probability that out of 600 bolts chosen at random, 12 will be defective.

Determine the slope of the line that has the following coordinates: (-3,6) (4,-2) -7/8 12/7 -8/7 8/7

Tom always keeps his 4 gardens clean. He take 20 minutes to clean a single garden. How much time will it take to clean a four gardens?

Convert 6.02x10^23 seconds to days

The Hypotenuse-Leg postulate can only be applied to right triangles. true or false