A company of cellular phones can sell 30 units per day at Php 6,000 each. Then, they found out that they can sell 10 more cell phone units per day for each Php 100 decrease in price. As a marketing manager you're going to present the maximum sale and the price per cell phone unit to reach the maximum sale through a graph. Quadratic Function

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

a. is correct

the anwser is d) 75°

step-by-step explanation: