Can someone plz help Camren needs 40 mL of 10% HCl solution, but she has only 5% HCl and 30% HCl solutions. How much of each solution should Camren use to make the 40 mL of 10% HCl solution? (Include units in your answers. More information.)
Camren needs to use of 5% HCl and of 30% HCl to make the 40 mL of 10% HCl solution.

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.