In a triangle when an angle between two equal length sides is 60 that means that the triangle is equilateral.
Three loaves since that’s what’s available to the family
Divide 171 by 3. then you have a unit rate of 57 miles per hour.
t is the number of hours Lamar worked as a tutor
We know that he worked for 92 hours total, so he worked 92-t hours as a waiter.
So his earnings are: 7t + 8(92-t) = 736 -t dollars
This expression seems logical as if Lamar worked 0 hours as a tutor and 92 as a waiter his earnings would be 8*92 = 736
If he worked as a tutor for 92 hours it would be 7*92= 644
736-92= 644
So our expression seems to be working.