What value is multiplied on both sides of the equals sign

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Which of the following is the true for f(x) = 5cos

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000