X= 45, you would place 15 into y's place, which would give you x-15= 30... then you would add 15 to both sides, which would give you x=45<span />
Answer:

Step-by-step explanation:

(simplify)

(Add 3 to both sides)
(simplify)

(Multiply both sides by p)

(Multiply both sides by 2)

(Divide both sides by 7)
it would be 160 feet wide
Answer:
-1152
Step-by-step explanation:
abc² the expression can be rewritten using the given values for each letter
(-3)*6*(-8)^2 now we find the second power of (-8) by multiplying it with itself
(-8)*(-8) = 64
(-3)*6*64 = -1152
ANSWER: y=6
straight lines are 180° and all the angles in a triangle add up to 180°