Usama needs to read 6 novels each month. Let N be the number of novels Usama needs to read in M months.
Write an equation relating N to M. Then use this equation to find the number of novels Usama needs to read in 13 months.

78 novels

Step-by-step explanation:

N= novels

M= month

6N = 1M

? = 13M

6N × 13M= 78NM

78NM ÷ 1M

cancel M, therefore;

the number of novels Usama needs to read in 13 months is 78.

78 novels

Step-by-step explanation:

=N ˣ M

=6 ˣ 13

=78

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180