Write the expression in expanded form. (4.2z)(-5y-3)
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You need to do like this:
Plug the numbers into the formula:
because they said <u>is </u>90 and <u>of</u> what?
Multiply diagnally: 100 × 90 = 9000 ÷ 82 ≈ 109.76
i don't really sure it was completly correct but hoped it helps:)
Plug the numbers into the formula:
Multiply diagnally: 100 × 90 = 9000 ÷ 82 ≈ 109.76
i don't really sure it was completly correct but hoped it helps:)