Answer:
270 miles
Step-by-step explanation:
If she drove 120 miles in 2 hours, that means she drives at 60 miles per hour. 4 hours and 30 minutes can be seen as 4.5, since 30 minutes is half an hour. So then you multiply 60 by 4.5 and get 270.
Two multiply 2 monomials, you have to multiply the coefficients and add the degrees. For example
2x^2 × 3x^3 =
6x^5
X=number of hours you read
y=number of pages
y=30x+70
number of pages after 3 hours:
y=30(3)+70
y=90+70
y=160
therefore, 160 pages after 3 hours
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(Brainlist)?!! Hope this helps!