Answer:
decrease, increase.
Step-by-step explanation:
If an expression is shown as 5(x+2) the numbers inside the parenthesis must both be multiplied by the number outside. Only x was multiple. The correct rewritten expression would be 5x+10
-3+(-2)= -5
-5+ 3i + 3i =
-5 + 6i
Answer:
Age of teacher = 32 years
Step-by-step explanation:
Average age of 15 students = 16 years
Sum of age of 15 students = 16 * 15 = 240 years
Average of age 15 students and a teacher = 17 years
Sum of age 15 students and a teacher = 17 * 16 = 272 years
Age of teacher = 272 - 240 = 32 years
The measurement of 32 units represents the border of her bulletin board.
