In your class, you have scores of 80, 78,65, and 81 on the first four of five tests. To get a grade of C, the average of the first five tests scores must be greater than or equal to 70 and less than 80. a Solve an Inequality to find the least score you can get on the last test and still earn a C b. What score do you need if the fifth test counts as two test?

Step-by-step explanation:

Average of 5 tests, if the last one equals x:

Inequalities we get and solve:

a) The least score is 46

b) If fifth test counts as 2 tests, then average changes and we get inequalities below:

y= -

when studying polynomials, you often hear the terms zeros, roots, factors and x x the multiplicity of a zero is important because it tells us how the graph of the let's look at the graph of a function that has the same zeros

step-by-step explanation: