Answer:
3, 7, 11, 15, 19 is an arithmetic sequence
Step-by-step explanation:
they go up by 4
The answer to question 3 is 4
Answer:
9 students have braces
Step-by-step explanation:
honestly, you could just probably solve it mentally but we are going to make a proportion.
5*3 = 15; so you then multiply 3 by 3 and get 9 as your final answer
3.2-5.7=-2.5 so its have to be a negative because a smaller number subtract a bigger number have to be equal to a negative number.
3.24 + 5.70 + 6.17 = 15.11
20.00 - 15.11 = 5.11
He got 5.11$ of change back.