Is this correct i get the following

a=bh/2
a=15.5× 5
a=75.5/2
a=37.85 sq. units

p= 15.14+8+7+4
p=34.14in.

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.