Cheyenne drove 3,000 miles in 75 hours. at this rate, how long will it take her to drive 4,000 miles?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

Need asap i will give brainliest and 98 points classify each pair of numbered angles corresponding, alternate interior, alternate exterior or none o these