Brooke earns $7 an hour at her job now. she can represent the total she makes in a week using the expression 7r. brooke has asked for a $1 an hour raise. which expression would represent the amount brooke would make in a week after the raise? a.8r b. r + 8 c.1r d. r +1

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.