21

14. f(x) = 6 to the power of x for x = 2

15. g(t) = 2 x 0.4 to the power of t for t = -2

16. y = 20 x 0.5 to the power of x for x = 3

17. h(w) = -0.5 x 4 to the power of w for w = 18

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.