Two functions, a and b, are described as follows:

function a
y = 9x + 4

function b
the rate of change is 3 and the y-intercept is 4

how much more is the rate of change of function a than the slope of function b?

3
6
2
9

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

One hectometer is a) 1/1000 of a meter. b) 1/100 of a meter. c) 10 meters. d) 100 meters. e) 1000 meters.

2and 3 are angles. complementary vertical congruent supplementary