Evaluate 9.5p+8.9r when p=7 and r=8

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

With finding limits of multi variable !

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? )