What multiplication expression represents 7+7+7+7?

What is 20+(5 x 2/5 )+ 3 show your work

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)