Which systems of equations have infinite solutions? a. 2x+5y=31
6x-y=13

b. y=14-2x
6y+3y=42

c. 2x+y=14
x=13-2y

d. 2x+y=10
-6x=3y=7

e. y=13-2x
4x-3y=-19

f. 2x+y=17
x=13-2y

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

What is the upper quartile in the box plot?

On the day a coffee shop first opened, it had 140 customers. 65% of the customers ordered a large coffee. how many customers ordered a large coffee? enter your answer in the box.