9514 1404 393
Answer:
22
Step-by-step explanation:
The number of Monster High dolls is ...
12% × 25 = 3 . . . dolls
The others are not Monster High dolls. Their number is ...
25 -3 = 22 . . . not Monster High dolls
Answer:
a) 
b) It takes 5.390 years to pay off the loan.
Step-by-step explanation:
(a) The differential equation for the variation in the amount of the loan M is

We can express this equation as:

(b) We can calculate this as M(t)=0

It takes 5.390 years to pay off the loan.
Answer:
10 km/h
Step-by-step explanation:
First, convert 150 minutes to hours:
150/60
= 2.5 hours
Then, to find his speed, divide the km by the number of hours:
25/2.5
= 10 km/h