Answer:
Full proof below
Step-by-step explanation:

Answer:
2x - y = 9
Step-by-step explanation:
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
Rearrange y + 1 = 2(x - 4) into this form
y + 1 = 2x - 8 ( add 8 to both sides )
y + 9 = 2x ( subtract y from both sides )
9 = 2x - y ⇒ 2x - y = 9 ← in standard form
One taco would cost about $1.20.
Answer:
8.52
Step-by-step explanation:
9.8 divided by 1.15 = 8.52
<span>The numbers 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97 are prime.</span>