Pls help!! Just give me the answers to the top part and the boxes

Can someone me with my hwplz(only the circled ones)

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

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes