Starting at 1: 00 p. m., the temperature changes −4 degrees fahrenheit per hour. write and solve an equation to find how many hours x it will take to reach −1°f.

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 ?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11