Me. answers: sas sss both sss and sas can be used not enough information to prove congruent

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.