The answer for this is 60
This phrase can be written as this mathematical expression:
28 + 35 = 63
The rate a computer works is 1/time. Working together, you add the rates.
Let new computer be x, old computer be y.
x = y - 7

Rounded to nearest tenth gives:
x = 23 hours
Answer:
a=-4
b=2
c=7
so therefore a*b*c=-4*2*7
Answer:
4.13 m
Step-by-step explanation:
using Pythagoras theorem