28°
a triangle = 180°
180°-140°= 40°
180°-68°= 112°
180°-112°-40°= 28°
Y(2y-3)(5y-1) check using foil
The answer is 2a+4
-2a -2(-2) +4a
-2a +4 +4a
-2a
=2a +4
If 12 donuts cost $8.50, you can divide $8.50/12 donuts (presumably with a calculator) to get $0.7083/donut which rounds to $0.71/donut. Make sense?
Answer:
Step-by-step explanation:
