Answer:
She can use a calculator
Step-by-step explanation:
Answer:
Step-by-step explanation:
Median: 73.5
Set the 2x - 1 equal to 9 then work backwards. 2x - 1 = 9 Nine minus one is eight divided by two is four. X = 4
Answer:

Step-by-step explanation:
We have two conditions:

Bella: y = 25x + 60 = 25(10) + 60 = 250 + 60 = 310
Heather: y = 30x + 10 = 30(10) + 10 = 300 + 10 = 310