Add the expressions. (25x + 4) + (15x − 1)
Question 12 options:

15x + 3

35x + 5

35x + 3

45x + 5

So basically you do 25x times by 15x then you do 25x times by -1 then you do 4 times by 15x then 4 times by -1 then you add all the x first one should get you an x squared the second one should have x on its own the third one don’t need an x

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.