Answer:
x=16
x=2
Step-by-step explanation:

7*9
b. 63
v=5 i=1
5+1+1= 7
x=10
10-1= 9
9*7= 63
Answer:
2 weeks
Step-by-step explanation:
y = mx + b
y = total number of chapters read = 
m = number of chapters read per week = 
x = number of weeks = what we're solving for
b is not needed to find this solution
=
x divide
from both sides
x = 2 weeks
Answer:
A:30
Step-by-step explanation:
because 3+2(the ratio) =5
75(the total number or both) divide by 5
so 1 ratio=15
15 x 2(the ratio of dogs)
=30