I’ve forgotten how to change fractions, can anyone explain 1/3 + 1/4?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false