Three dentists wanted to compare the ages of their patients. they each calculated their patients’ mean age and the mean absolute deviation of their ages. they displayed the results in a table. which statements are true? choose exactly two answers that are correct. dentist mean patient age mad appiah 43 9.7 cantwell 29 13.9 singh 41 14.1 a. dr. appiah’s patients’ ages vary more than do dr. cantwell’s patients’ ages. b. dr. appiah’s patients’ ages vary less than do dr. singh’s patients’ ages. c. dr. cantwell’s patients’ ages and dr. singh’s patients’ ages vary about the same amount. d. dr. singh’s patients’ ages and dr. appiah’s patients’ ages vary about the same amount.

1: -2 3/4, -2 1/2, -14, 0, 3, 8 1/3

2: -4, -3, -2 1/2, -2 1/4, 3 1/4,

step-by-step explanation:

sorry not sure

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: