5 + 10 + 10 + 0 -3 = 22
22 / 5 = 4.4
It is 3yd (the Hight) x 4 yard(half the base) = 12yard and that is actually double the size of the single triangle we just measured but add its partner back on its:
12 YARD
B would be 40 because if you do 40 times 7 it would be 280.
140, 170 would be too close to the bottom while the others would be too small
Aubrey would be able to run 9 miles in ninety minutes.
90 minutes=1.5 hours
6*1.5=9
Hope this helps