Answer:
4y^(2)+14y+31
Step-by-step explanation:
First you need to do (y+7)(y+7)
y^2+7y+7y+49
y^2+14y+49
Add it all together
y^2+14y+49+3y^2-15
4y^(2)+14y+31
Answer: Option C is the correct answer.
Step-by-step explanation:
Answer:
16 minutes
Step-by-step explanation:
multiply 20 by 80% (20 times .80)
Sum of two sides of triangle always greater than third side, so third side (x) could be:
14 < x < 32