Answer:
Step-by-step explanation:
r+2r+3r+4r
r
=
10r
=10
It is -2x because -6 + 4 =-2
Answer
workbook =x
1/4 3/5
x 5/5 (1 hour)
then x=(5/5 * 1/4):3/5
x= 5/20 * 5/3
x=1/4 *5/3
x= 5/12
