This data set gives the scores of 41 students on a biology exam: {66, 67, 67, 68, 80, 81, 81, 82, 22, 65, 66, 68, 69, 70, 71, 71, 71, 72, 72, 73, 73, 74, 75, 78, 78, 78, 78, 79, 79, 80, 80, 82, 83, 75, 75, 75, 76, 77, 83, 83, 99} which of the following is the best measure of the central tendency?

can you add an image ?

step-by-step explanation:

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !