Evaluate the expression described below if the number is 4.
the difference between a number squared and the number.
a. 0
b. 4
c. 12
d. 20
select the best answer from the choices provided

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.