What is the solution to the equation 2^x+4 - 12=20?

A. x=0

B. x=1

C. x=2

D. x=9

If c = 30 and d = 8, then 2c + 4d = A) 512 B) 278 C) 136 D) 92

One-tenth of the cars in a car park are yellow. Another car arrives and now one-ninth of the cars are yellow. How many cars are now in the car park?

Jerry's bowling score was 230 last week, but only 190 this week. What was the percent decrease in Jerry's score? A. 21.1% B. 17.4% C. 1.74% D. 2.11%

Mary Jane is organizing her CDs. Each CD case has an area of 16 in2. The height of a stack is 5 inches. What is the volume of a stack? A) 45 in3 B) 60 in3 C) 80 in3 D) 90 in3

Gavin had 20 minutes to do a three-problem quiz. He spent 9 9/10 minutes on question A and 3 3/5 minutes on question B. How much time did he have left for question C?

Sarah placed 3 5/8 quarts of Strawberries and 2 1/8 quarts of blueberries in a bowl. How many quarts of fruits did Sarah place in the bowl

When making a batch of orange juice for her basketball team, Jackie used 5 times as much water as concentrate. There were 32 more cups of water than concentrate

Giles is searching for a sock and discovers that he has 10 socks for every 5 pairs of shoes. If he has 20 socks, how many pairs of shoes does he have?

Four expressions are shown below: 4 (8x + 2) 4 (7x + 3) 32x + 8 28x + 12 Which two expressions are equivalent to 4 (7x + 2 + x) ? 1. A and B 2. B and C 3. A and D 4. A and C

Writing and graphing linear equations