What is 41 divided 0.05 help me quick

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

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)