Jayson used 0.5 cup of kernels to make
16 cups of popcorn. how many cups of
popcorn would he make if he used 0.75
cup of kernels?
a 32
b 28
c 24
d 20

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

How is working backward similar to solving an equation?