Ups charges $6.00 plus $0.90 per pound for shipping packages over the holidays. Write the equation used to find the number of pounds, x, you can ship for $25.80

See below

Step-by-step explanation:

X = # of pounds

Y = 25.80

y= mx +b

25.80 = mx + b

M = $ per pound

25.80 = 0.90x + b

B = $ added on top of the $ per pound

Full equation ->   25.80 = 0.90x + 6(.00)

x=9

Step-by-step explanation:

Angle A = 48 degrees, Angle B = 132 degrees

(4x + 12) + (15x - 3) = 180

19x +9 = 180

19x = 171

x = 9

Angle A: 4x + 12 --> 4(9) + 12 --> 36 + 12 --> 48

Angle B: 15x - 3 --> 15(9) - 3 --> 135 - 3 --> 132

48 + 132 = 180