The bill for five glasses of apple juice and four salads is $9.50. The bill for four glasses of apple juice and five salads is $10,30. Which systems of linear equations could be used to find the cost of one apple juice and one salad?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

answer: 193

explanation:

200-7 = 193

i think its a.

hope this