ANSWER:
We have to find new side-lengths of PQR triangle.
Original sides are.

After multiplying by 2.5 we get

These are the new sides of the P'Q'R' triangle.
Since the length of each side of cube is s.
Volume of a cube = s³ = s*s*s
Since length of side = 6cm
Volume = 6³ = 6*6*6 = 216
Volume = 216 cm³
Option A.
Set up the equation ... 60 + 40X = total charges... where X is the number of hours (8.5)
60 + 40(8.5) = ?
60 + 340 = ?
400 = total charges
72% as a decimal is 0.72.
72% as a fraction is 72/100 = 18/25.
Answer:

Step-by-step explanation: