In the rectangular prism below, RV= 15, RS= 12, and RT = 40. Find the length of the diagonal RU If applicable, round your answer to the nearest whole number.
The lengths on the figure are not drawn accurately.

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

faster, im not sure why but i know it is faster

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

its line 2 i just added the rest or else it wouldn't let me answer