The line passing through point (2, 4), parallel to the line whose equation is y = x

Let r = 3. what is the value of r + 58?

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

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance