In an orthonormal system the two lines with equations y=2x+3 and 2y+x=1 are ( interesting at the points 1,5)

(perpendicular)

(parallel)

justify your answer​

Adeli charges the same price, $5.50, for all of its different sandwiches. if a company ordered n sandwiches for a luncheon, which equation could be used to find the total price, p, that the deli charged for the sandwiches? a- n/5.50=p b-5.50n=p c-5.50/n=p d-5.50+n=p

If g(x) is an odd function, which function must be an even function?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees