Answer:
-54
Explanation:
First we need to use the distributive property on 7(x+5), so do 7×x + 7×5. Simplify that and you get 7x+35.
Subtract 35 from both sides and you get 7x= -63. Divide both sides by 7 and you get x= -9.
Now we can substitute -9 for x, so do 6×-9 and you get -54.
Hope this helps :)
D. 15 m, 2m, 2.5m. it doesn’t match the triangle inequality theorem. the sum of the side lengths don’t exceed that of the third side
2y² + 8 ÷ 2y + 4 =

Thus the quotient is y-2 and the remainder is 16.
View my working below in the attachment.
The distance formula for 2 points = √((x2-x1)^2 + (y2-y1)^2)
use R for x1 and y1 and use S for x2 and y2.
Distance = √((10- 1)^2 + (3-(-6))^2)
Distance = √(9^2 + 9^2)
Distance = √(81 + 81)
Distance = √162
Distance = 9√2
Distance = 12.7 ( Rounded to nearest tenth)