does anybody know the answer?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

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)

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry