Joesphine scored 95, 84, and 87 on three math tests. She wants her average score for 5 tests to be at least 90.
Part A: What are two possible test grades she could get to reach her goal? Justify your reasoning.
Part B: What are the two lowest grades she could get and still get at least a 90 average? Prove your result.
I am very confused. Please help...

In the proof of the triangle angle sum theorem, you must draw an auxiliary line. which construction must you use to draw this line?

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100