Which of the expressions below have exactly 4 terms? Select all that apply. A) 15x4 + 9x2 + 5x + 12
B) 12y3 + 8y2 + 4y + 20
C) 18-5n + 3n + 43
D) 4x3 + 12x

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

How are algebraic expressions evaluated using substitution?

△abc is similar to △xyz. also, side ab measures 6 cm, side bc measures 18 cm, and side xy measures 12 cm. what is the measure of side yz ? enter your answer in the box.