Would this be the correct answer? because if not i am totally lost​

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed