Hey, please help me! Thank you so much!

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

Could someone me find the answer to this problem.

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)