Which system of equations below has infinitely many solutions?

y = - 3x + 4 and y = - 3x - 4

y = - 3x + 4 and 3y = - 9x + 12

y = - 3x + 4 and y = - 1/3x + 4

y = - 3x + 4 and y = - 6x + 8

A nickel and a dime are flipped. what is the probability both coins will land tails up

Given f (x) = 3x-1 and g (x) = 2x-3, for which value of x does g (x) = f (2) ? X=3/2 X=2 X=5/2 X=4

The sum of 6 and a number, n, is 15. find the number

Angelo's pet rabbit weighs 1 pound less than twice the weight of Carmen's pet rabbit. Angelo's pet rabbit weighs 9 pounds. Write an equation that can be used to find (w), the weight of Carmen's pet rabbit

Jaquan mixed 1 3/4 teaspoons of baking powder with 1 1/2 cups of flour to make a cake. Jasmine asked him to make some cake for her birthday party. To make a cake the birthday cake, Jaquan used exactly 9 cups of flour.

Central Middle School sold 50 tickets for one night of the school play. Student tickets sold for $2 each and adult tickets sold for$3 each. They took in $135. How many of each type of ticket did they sell?

I have done a math equation for school and i forgot if i could leave a inproper fraction as my answer or if its a fraction i can reduce should i or should i not

Enter the value of n so that the expression (-y + 5) + (7y - 9) is equivalent to (ny - 4)

The heavyweight weight class in high school wrestling is from no less than 195lb and a maximum 285 LB write two inequalities to represent this range

A shose box measures 15in. by 7in. by 4 an half