carlo has 6 times as many ₱20-bill than ₱50-bill in his account. He has 21 bills in all. How many of each bill does he have? How much money does he have in all?

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

A.s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s

Factor and solve to find roots x squared -x - 90 =0