Answer:
He volunteered 10 hrs 15 min on average.
Step-by-step explanation:
The first week: 8 hrs
The second week: 12 hrs
The third week: 12 hrs
The fourth week: 9 hrs
8 + 12 + 12 + 9 = 41 hrs total
41 hours/4 weeks = 10.25 hrs (10 hrs 15 min)
20 percent for red. 31.25 percent for black.
Subtract sales tax ...
$62.99 - $2.99 = $60.00
Divide the difference by the numbers of shirts the dude bought
$60.00 ÷ 6 shirts = 10
Each shirt would be $10.00
That's a pretty good deal !
Hope I helped :)
I’m guessing it’s -2x? if so it’s a straight line going past points (0,5) and (2.5,0)
Y2-Y1 over X2-X1 which gives you 7/-11
