4. Ashley and Oscar were looking at the proportional
relationship in this table.
Time
Distance
Ashley says the
constant of
proportionality is 540.
1 hour
540 miles
Oscar says the constant
of proportionality is 9.
1 hour
36 minutes
864 miles
Do you agree with either
of them?
42 minutes
378 miles
Explain your thinking.

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence.then write an expression to find dario's text messaging bill if he sends n text messages over 250.

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

The length of the line segment ac is 8x-9 what is the value of x