Each week, tina earns $x babysitting and receives $10 as her allowance. to find how much she will earn in total over 4 weeks, tina calculates: x + 10 + x + 10 + x + 10 + x + 10. what is another way tina can calculate how much she will earn in total over 4 weeks?

Step-by-step explanation:

To find how much she will earn in total over 4 weeks, Tina calculates:x + 10 + x + 10 + x + 10 + x + 10.

Another Way

Each week, Tina earns $x babysitting and receives $10 as her allowance.

So, total earning for each week = x+10

So, total earning for 4 weeks =

Hence The another way of calculating her earnings in 4 weeks is  

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5