You are given that cos(A)=15/17, with A in Quadrant IV, and cos(B)=4/5, with B in Quadrant IV. Find cos(A−B). Give your answer as a fraction. Please help i need this asap.

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Revirite the formula to determine the area covered by one can of paint. alyssa and her father are going to paint the house this summer. they know they'll need 6 cans of paint. enter the correct answer. 000 done a formula that describes this scenario is (licierali 000 oo 6 w w = the total area of the walls p = area covered by a can of paint