What is the solution of the following system? -2x-y=1 -4x-2y=-1 a) infinitely many solutions b) no solutions c) (3,8) d) (-3,-8)

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64