1. 4n + 28
2. 30-10x
3. 3m+3n
4. 8+2j
When you multiply two integers, or in fact any two numbers, you are finding the product of those two numbers;
So finding the product is done through multiplication.
65% = 156
1% = 165 ÷ 65
1% = $2.40
100% = 2.4 x 100
100% = $240
Answer: The original price 20 years ago was $240.
240 - 156 = $84
Answer: The current price is $84.
I would say 564, considering it's the only data we have.
Answer:
Equation for the area of a circle- π r²
The 2 radiuses are 6 and 9.
6 squared is 36 and 9 squared is 81.
The smaller one is 36π and the larger one is 81π.
The difference between them is the area of the shaded region.
81π - 36π = 45π
Use 3.14 for π.
45 x 3.14 = 141.3 u²
Hope this helps!