Phil receives a $2,000 tax refund and puts it all in a simple interest investment account paying a fixed return each year. After two years, the investment account is up to $2,500. What is the yearly simple interest rate? A - 25%
B - 37.5%
C - 50%
D - 12.5%

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

What does x = in this equation x+3+2x=x+5

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?