At the gift shop, they sell small greeting cards and large greeting cards. The cost of a small greeting card is $ 2.50 and the cost of a large greeting card is $3.85. How much would it cost to get 4 small greeting cards and 5 large greeting cards? How much would it cost to get small greeting cards and y large greeting cards ?

X-

Step-by-step explanation:

12

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.