To get an a in a course you must have an average of at least 90 on four tests that are worth 100 points each. your scores on the first three tests were 87, 92,
and 84 set up and solve an inequality to find the range of the score that you need on the last test to get a course grade of "a"

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

there is no grid

step-by-step explanation: