Mr. Henry spent $18 on a new hat this week he learned that the same hat available on sale at $12 last week what was the percentage increase in the price of the hat this week?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?

The measures of two supplementary angles are (2x + 10)° and (8x + 10)°. what is the measure of the larger angle? a. 16° b. 44° c. 14° d. 138°