1. in a certain algebra class there is a total of 350 possible points. these points come from 5 homework sets that are worth 10 points each and 3 hour exams that are worth 100 points each. a student has received homework scores of 4, 8, 7, 7, and 9 and the first two exam scores are 78 and 83. assuming that grades are assigned according to the standard scale and there are no weights assigned to any of the grades is it possible for the student to receive an a in the class and if so what is the minimum score on the third exam that will give an a? what about a b?

a. all that the student will need to do is get at least an 84 on the third exam.
b. all that the student will need to do is get at least an 83 on the third exam.
c. all that the student will need to do is get at least an 42 on the third exam.

2. we want to build a set of shelves. the width of the set of shelves needs to be 4 times the height of the set of selves and the set of shelves must have three shelves in it. if there are 72 feet of wood to use to build the set of shelves what should the dimensions of the set of shelves be?

a. so, it looks like the height of the set of shelves should be 1 feet
b. so, it looks like the height of the set of shelves should be 4 feet
c. so, it looks like the height of the set of shelves should be 8 feet

3. a calculator has been marked up 15% and is being sold for $78.50. how much did the store pay the manufacturer of the calculator?

a. the store paid $68.27for the calculator
b. the store paid $46.26 for the calculator
c. the store paid $68.26 for the calculator