Frank ran 65km on monday, 68km on tuesday, 66km on wednesday, and 80km on thursday. he ran again on friday, then calculated the mean distance run per day to be 70km. how far did frank run on friday?

71

Step-by-step explanation:I think I solve it a weird way but here it is.

70 times 5= 350

65+68+66+80= 279

350-279= 71

Check:

65+68+66+80+71= 350

350/5=70 which means 71 is the correct answer

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation: