Point b is the image of point A when A is rotated 90 ° counterclockwise around the origin

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 ?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x