Please help i will do anything i need this

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Chose the graph below that represents the following system of inequality’s

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?