Answer:
[tex]60[/tex]
Step-by-step explanation:
Suzzane can work 10 math problems in 15 minutes. We need to use proportion and raito.
One hour and a half is equal to 90 minutes. But to equal out the math problem, change it to 900.
So:
[tex]\frac{10}{15}[/tex] [tex]= \frac{x}{900}[/tex]
[tex]= 60[/tex]
