Antonio pays y dollars per visit to his fitness center and he pays his bills every 3 months . In October he visited the gym 22 times in November he visited 25 times and in December he visits 19 times write and variable expression to represent how much he will have to pay for the last three months of last year. Evaluate the expression for y=2.50

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.