Answer: -4
Step-by-step explanation: If you add all the numbers marked, -7 + -4 + -3 + 2 + 7 you will get -4.
7.980 divide by 0.19 is 42.
Answer:
8
Step-by-step explanation:
diameter is the radius times 2
(I think you mean x2 is x squared correct? if so) x^2+x^2-5x-x+7
2x^2-6x+7
