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Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation, and the determine the cost if he drove it70 miles. b) what would be the cost of a car rental if the car was driven 250 miles? show work