Mark bought a rare baseball card for $25. He found out it is now worth $30. What is the percentage increase in the cards value?

Which is NOT a good reason to perform step 1 in the solution shown? Step 1 : 8x/8 = 48/8 Step 2 : x = 6 A.) Dividing is the inverse of multiplying. B.) Divide by 8 because 8 is a factor of 48. C.) Dividing both sides by 8 keeps the equation balanced.

Which equation is false for x = 4? A) 2x - 8 = 0 B) 3x + 6 = 18 C) 4x + 5 = 25 D) 5x - 4 = 16

Choose the answer. A rectangular side yard was 9 yards long and 3 yards wide. What is the area of the side yard? a. 27 yd B. 27 yd² C. 18 yd D. 18 yd²

What is (0.3 x 2.8) 2

X = Raul's marshmallows #1 y = Jenny's marshmallows x + 6 = y Raul and Jenny each drank a cup of hot chocolate after playing in the snow. Jenny put 6 more marshmallows in her cup than Raul. Together, they had a total of 30 marshmallows.

Solve for v in terms of s, t, an u. U=tsv

Two cities are 2310 miles apart. a plane leaves one of? them, traveling towards the other at an average speed of 380 miles per hour. at the same time a plane leaves the? other, traveling towards the? first, at an average speed of 390 miles per hour.

What expression is equivalent to x+x+x+2

Todd ran 8 laps around a 400-meter track on monday, 4laps on tuesday, 8 laps on wednesday, 4 laps on thursday, and 8laps on friday. how many kilometers did he run?

Amanda found that the equation 10x+5y=20 in the "Linear Equations" chapter of her math book What is an equation that can be written with Amanda's equation to for a pair of linear equations such that the system of equations has exactly one solution?