Which of there is a pure substance?

A. Bread

B. Table Salt

C. Soil From a Garden

D. Sea Water

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

Solve 17= -13 - 8x and show your work.

At the beginning of the year, adrian's savings account balance was \$28$28. each week, he deposits another \$15$15 into that account, and he doesn't spend any of his savings. is his savings account balance proportional to the number of weeks since the start of the year?