Which expression represents the phrase? "A number x is tripled and then decreased by 10." A) 3x – 10 B) 3x + 10 C) x3 – 10 D) x3 + 10

Step-by-step explanation:

x is tripled so it becomes 3x

it is decreased by 10 so it becomes 3x - 10

so the answer is a) 3x - 10

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22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.