Answer:

Step-by-step explanation:
Step 1: Write expression

Step 2: Simplify Parenthesis

Step 3: Exponent Exponents

Step 4: Simplify

Answer:
=3/7 × -2/5
=-6 / 35
Step-by-step explanation:
Answer: 22
Step-by-step explanation:
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Answer:
30$ sales tax, 460$ Total
Step-by-step explanation:
7% of 430 is 30.1, after rounding it’s 30, and 430 plus 30 is 460.
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Answer:
Afful is 21 and Naomi is 13.
Step-by-step explanation:
Let
represent the age of Afful and
represent the age of Naomi.
The sum of their ages is 34. In other words:

In 5 years time, Afful will be two times the age of Naomi <em>now</em>. In other words:

Solve for the system. Substitute.

Afful is currently 21 and Noami is currently 13.