11. a math teacher decides to create several practice tests for her students before they take the sat. she
wants to make some non-calculator tests and some calculator tests so that her students will be able to
practice both. she figures that each non-calculator test will take her 3 hours to create, and each calculator
test will take her 4 hours to create, if she is willing to devote at most 6 hours per week of her time for the
next 5 weeks to create the practice tests, and she wants to provide at least 8 practice tests, which of the
following systems of inequalities can her determine how many of each type of test she can create?
(a) n+c 28
3n + 4c 5 6
(b) n+c 28
3n + 4c s 30
(c) n+cs8
3n + 4c
30
(d)n + c 26
3n + 4c s8