Solve 2x<1

To calculate: The numbers when the difference of two positive numbers is 3 and the difference of their squares is 33.

How do you express the phrase "Five times the number of books is 95" as an algebraic expression?

How do you simplify ${\displaystyle -8(-11b)(-c)}$?

How do you simplify ${\displaystyle (x^2+7x-4)+(x^2+9)}$?

Ms. Garcia has 120 comic books. She gives 15 to each of her three nephews, then buys 4 more.
Write and evaluate a numerical expression that describes the number of comic books she has now.
Enter the expression and the value of the expression in the boxes.
Hint

How do you simplify ${\displaystyle 3.2(x+y)+2.3(x+y)+4x}$?

Given:
${\displaystyle b=\frac{3}{4}a}$
a+b=21
Find a and b