Step-by-step explanation:
f, your friends lunch
f + 3, your lunch
f + f + 3 = 19
2f + 3 = 19
2f = 16
f = 8
Your friends lunch was $8
I hope this helped!!!!
Answer:
Based on what I know the answer is 28.
Step-by-step explanation: I know that it is 28 because I listed all of the factors on a piece of paper and matched them all up and saw that the answer was 28.
Answer:
B
Step-by-step explanation:
hope this help but I worked it out so it should be true
Answer:
25x^2 - 16y^2 - 400 = 0
Step-by-step explanation: