Will mark brainliest if right and show your work ...

What is the sum of the polynomials?

(9x^4-13x^3-x-7) + (7x^3-2x+1)

Tooth pasic comes in a package of 12. The 4 pack or toothpaste costs $5.00, and the 12 pack of toothpaste costs $13.80. which or those packages is the better economical deal. what is the unit rate price of the better deal?

Find the range of the given data set. - 4, - 3, - 1, - 1, 0, 1

A girl has $2.87 in pennies, nickels, dimes, and quarters. If she has an equal number of coins of each kind, how many coins does she have? Answer is a whole number.

Area model represents the product of 27 and a number what is the other number

Expalin the basics of quadratic functions? how to find the vertex?

The variablesx and y are directly proportional, and y=2 when x=3. What is the value of y when x=9?

Barry got a samll sandwich for lunch and ate 1/2 of his sandwich. Jonah got a large sandwich and ate 1/2 of his sandwich. Did Jonah and Barry eat the same amount for lunch? Explain how you know.

Solve. s - 6 < 24 s < 6 s < 10 s s < 90

How many solutions are there for a+b+ab=50. Show your work

What 3/16 turned into a decimal and 5/48 turned into a decimal