Which expressions are equivalent to 8.9%+6.2+8.7? Check all that apply.
9x+8+9
8.9+6.2+8,7%
8.9x+8.7+6.2
8.7+8.9x+62
6.2+8.7+8.9
6.2+8.7+8.9%
8.9+6.2x+8.7

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Write as a product of two polynomials. 2(3–b)+5(b–3)^2

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?