Which equation has an infinite number of solutions? A. 12 = 3y
B. 8 + 5 = 21
C. 2x + 7 - 2x = 7
D. 4p - 4 = 4p + 4

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Which graph represents the function g(x) = |x + 4| + 2?

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189