What is slope and how is it determined from graph?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb