Calculate the percentage increase of an item that cost R59.99 in 2020 and R 65.99 in 2021​

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas