Sue's Sushi placed two orders with its fish supplier. One order was for 13 pounds of salmon and 7 pounds of tuna; the order totaled $198. The other order was for 10 pounds of salmon and 5 pounds of tuna; this order totaled $150. What is the cost for one pound of salmon and one pound of tuna?
A.
$12 salmon; $6 tuna
B.
$8 salmon; $10 tuna
C.
$14 salmon; $4 tuna
D.
$9 salmon; $9 tuna

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 − 24x 8,000 + 2x 8,000 − 2x

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?