If you're good at exact values of trig ratios pea shell me with 13a

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

True or false? many triangular shapes can be circumscribed about a given circle

What is the standard form of -5x^2+2x^4-11+x^3+3x