Find all solutions of the equation in the interval [0, 2π). cos(2x) + sin(x) = 0

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Witch represents the inverse of the function f(x)=1/4x-12

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?