Which of the following is a monomial?

a. 3x + 4
b. 3x2 + 2x − 1
c. 4
d. 2x − 1

Which expression is equivalent to −16y+13 ? −16(−y+13) 16(−y+2) −16(y+2) 16(−y+13)

What is the value of the expression below? 148+(-6)| + |– 35= 7|

You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?