Kath starts with a number. she adds 3 to her number then double the result. finally, she subtracts 7. if she ended with 9, what number did she start with?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)