Arectangle has an area of 428 square feet. if the sum of the length and width is 22 feet, what is the dimension

Ill mark the brainliest if you me with the these three questions 7,8,9

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?