198+132=? make a ten or a hundred to add mentally

When rounded to tens, we get 330.

When rounded to hundreds, we get 300.

Step-by-step explanation:

198+132

Rounding to nearest tens.

198 = 200                                  

132 = 130                  

Adding both we get      

Rounding to nearest hundreds.

198 = 200

132 = 100

Adding both we get

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

~

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour