Idon't know how to put multiple photos in one question. anyone ! ?

I think its c.

and to add multiple photos just press add attachments and a + will pop up and just press that.

Hope this helps!

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

allowed for the prediction of the properties of missing elements.