Can someone help me on this one? Links and empty slots will be reported.

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )