Ms. Howard buys and sells stocks for investors, Ms. Howard's salary is based on commissions from her stock sales. She receives 7% commission on each class-A security she sells and 5%
on each class-B security she sells. If Ms. Howard sells $93 400 worth of class-A securities and
$77,500 worth of class-B securities in 3 months, what will her total salary be for these 3
months?
O $10 413.00
O $6,538.00
O $3.875.00
$20.508.00

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?