Is the coordinate (1, 2) a solution of the system below?

x + 2y = 5

y = x + 1

yes
no

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?