80% of (Cost) = $68
80% is also 0.8:
0.8 x Cost = $68
dividing each side by 0.8
Cost = 68 / 0.8 = 85 = $85
Step-by-step explanation:
= 4x-x+5x+1+8-2
=8x+7
proved##
C- the submarine went further down 1 to 3 meters in 1 second if you look at the line-
Answer:
10 and 2
Step-by-step explanation:
One number is 8 less than the other.
10+2=12
10-8=2
10+2=12
