Which pair of numbers is relatively prime?

a.
26 and 91

b.
14 and 63

c.
18 and 45

d.
10 and 33

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

(60 points) explain this in detail

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf