"! i need with my math problems, ! " (27 points)
25.) you ride your bike at an average speed of 14 miles per hour. the number of miles m you ride during h hours is modeled by m = 14h.

26.) the circumference c of a circle and its diameter d are related by the equation c = (pie sign) d.

(the picture has the same questions, only 25, and 26.)

What's the difference between: x≥0 and nonnegative integer. ?

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.