The landscaper pours 200 gallons of herbicide in a pond. the herbicide degrades 10% each week. the landscaper will put another dose in the pond when thr herbicide level drops below 50 gallons. in about how many weeks will he need to add more herbicide?

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 13-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50

Solve for x where 0 equation: cot^2x+2cotx+1=0