A=3 and b= -1
what is 2a - 3b

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.