Can you use simplest form to compare 8/10 and 3/5 explain

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?