Add the opposite of 2 1/2 to the sum of 1.25 and (−1 3/4 ). PLS help right now.

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?