Answer:
a) a + b
Step-by-step explanation:
4:1 is first answer
10:3 is second answer
5
see attachment below
48x-5
multiply
5*8x
to get
8x+40x-5
combine like term
A
Antonia: 150 x 12 + 4,500 = 6,300
Cal: 250 x 12 + 3,400 = 6,400