Mrs. shelby earns $400 per week in salary plus 8% commission on her total sales. how much must her total weekly sales be in order for her to earn exactly $650 per week?
a. $2000
b. $3125
c. $5200
d. $8125

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)