Which pair of terms are like terms?

a, 7ab and 4b
b, -3x and 0.5x
c, wy and 10y
d, 4.2xy and 3x

17 in long 1.3 ft wide and 8in high what is the volume

Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.