Answer:
Your answer is 61.
Step-by-step explanation:
Simple enough! We simply round up each cost to the nearest whole dollar. $6.50 can be rounded to $7, $15.75 can be rounded up to $16, $2.25 can be rounded up to $3 (Note we're rounding up, in normal rounding we would round down to $2). Finally, $7.25 can be rounded up to $8.
Next comes simple algebra,

Therfore, your overestimate of the cost would be 61.
Answer:
The answer is the first one. Inside the absolute value symbols it is negative but absolute value answers are always positive. Instead of -30 the answer is 30.
Answer:
The equation is not linear so the slope does not exist. And neither does a slope for the parallel line.
Step-by-step explanation:
Good luck xx
C because 3 is the intercept and -2 is the slope