When solving the system of equations below, what is the appropriate substitution?
y = 10x + 1
y = 2x – 5
2x - 5 = 10x + 1
O y = 10(2x - 5) + 1
O y = 2(10x + 1)-5

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =