The driveway to the Santiago‘s new home is to be bounded by semicircular arcs as shown the distance from X to Y is 100 feet. The concrete driveway is 10 feet wide and 1/3 feet thick. How many cubic feet of concrete are needed to build the driveway?

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

Find two numbers if their sum is 91 and the ratio is 6: 7?

I’m confused on how to work the pie charts