density= mass/volume
mass= densiy x volume
mass= 6.3 g/mm^3 x 30mm^3= 189 g
4- you can represent the siblings by
j+(1+2j)+(j-3)=26
Combine like terms
4J-2=26
4j=28
J=7
5- she paid 5.50 for 5 pounds (then got .50 off)
8 quarts = 32 cups
So we have a ratio of 32 : 3/4 cups
And the equal ratio of 4: x
So to solve for x, divide 3/4 by 8.
3/4 divided by 8 = 3/4 •1/8 = 3/32 of a cup of green paint.