Answer:
3 * (x + 7)
Step-by-step explanation:
Mark number as x
Then the sum of a number and seven is x + 7
Three times x + 7 can be written as
3 * (x + 7)
Parentheses mean that we first add x and 7 and then multiply their sum by 3
Alternatively you can write it as 3x + 21, since
3 * (x + 7) = 3 * x + 3 * 7 = 3x + 21
Answer:
= 29.2942
Step-by-step explanation:
Hello, the answer should be 
Detailed solution is given in the photo. We need to find the slope of the line. We found the slope by drawing a right triangle. Then, we got the result by substituting two different points in the equation. Good luck!
Answer:
13,452 is the value after 12 years
Step-by-step explanation: because
Answer:
V = 7.5 × 2 × 4.5
Step-by-step explanation:
The volume of a rectangular prism is length × width × height. In this case since the length is 7.5 centimeters, the width is 2 centimeters, and the height is 4.5 centimeters, the answer is
V = 7.5 × 2 × 4.5
