4x + y = 3
x - y = 2

Which equation(s) best represent the *Second step* of solving the system above?

A. 2x-x= x-7

B. 2xy - 7 = 2

C. 4(2 + y) + y = 3

D. 4x + (-2 + x) = 3

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12

5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%