Plz help thank you lol help

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?