Answer:
number 1 option
Step-by-step explanation:
Sierra
10p + 5s = 115
Amy
1p + 3s = 34
Answer:
9/3=3
Step-by-step explanation:
the formula is y2(7) minus y1(-2)
divided by x2(-4) minus x1(-7)
Step-by-step explanation:

from difference of two squares:

therefore:

factorise out ¾ :
