Four times a number is 84 what is the number

Which of the following is true for the relation f(x)=2x^2+1

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

There are three grizzly bears in the city zoo. yogi weighs 400.5 pounds, winnie weighs 560.35 pounds, and nyla weighs 628.29 pounds. what is the average weight of the three bears? (hint: what do they weigh all together? ) a. 502.97 pounds c. 604.38 pounds b. 529.71 pounds d. 794.57 pounds