A pencil costs $3.50 and a pen costs $6.70. Jessica bought m pens. She also bought 4 fewer pencils than pens. Write and algebraic expression for the total amount she spent.

Jessica bought X pens, which cost $6.70 each.

She also bought 4 fewer pencils than pens, or (X-4) pencils, at $3.50 each.

So in total, she spent:

6.7X + 3.5(X-4)

= 6.7X + 3.5X - 14

= 10.2X -14

So she spent $(10X - 14) on pens and pencils.

Step-by-step explanation:

Ok so Jessica bought M pens, which cost $6.70 each.

She also bought 4 fewer pencils than pens, or (M-4) pencils, at $3.50 each.

So in total, she spent:

6.7M + 3.5(M-4)

= 6.7M + 3.5M - 14

= 10.2M -14

So she spent $(10M - 14) on pens and pencils.

Hope this helped :)

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

75

step-by-step explanation: