Kevin gave ben $4.90 in dimes and quarters. if 10 coins were quarters, how many coins were dimes? which equation models this problem? a)4.90 • 10 = 25d b)5d + 250 = 4.90 c)25 + 5d = 4.90 d)0.25 • 10 + 0.1 • d = 4.90

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)