Karina earned $60 from her part time job. she spent 3/10 of it on food and 1/4 of it on music. how much money does she have left. pls show all work and answer

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+9

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?