Need on 2 math questions 13. divide the rational expressions. (7y-1)/(y2-36)÷(1-7y)/(y+6) 2. add or subtract as indicated. write the answer in descending order. (3n^4 + 1) + (–8n^4 + 3) – (–8n^4 + 2) a. –13n^4 + 6 b. 3n^4 + 6 c. 3n^4 + 2 d. 19n^4 – 4

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.