A hiker climbed up from the bottom of a mountain. His elevation increased at a rate of 40 feet each hour.
Which equation models the change in his elevation at 3 hours?
A. (-3)(-40) = -120
B. 3(-40) = 120
C. 3.40 = 120
D. 3(-40) = -120

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125

Which graph represents the function g(x) = |x + 4| + 2?