47. Ann is stocking up on boxes of cereal. If they are on sale for $2.25 each and she has a $2 coupon, and she wishes to spend a maximum of $20 on cereal, how many boxes can she buy?

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

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 25% of y is 30, what is 60% of y?