multiplying polynomials(3m-1)(8m+7)

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?