There’s two lines, one with a slope of -2 and another with a slope of 2. are they perpendicular?
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If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

What is the prime factorization of 230