4 pounds.. Take 8 pounds times the fraction 2/4 which is also 1/2 and you get 4
P(P then C)=(7/10)(3/12)
P(PthenC)=21/120
P(PthenC)=7/40
60=4x+24
-24. -24
36=4x
36÷4
x= 9
she needs babysit 9 more hours to have enough for the bool series
Graph of Parallel lines shows a system of equations with no solutions
Step-by-step explanation:
Consider a set of equations

If we solve this both equations using any one of the solving method, (Substitution method) then we will get

substituting the following x in 2nd equation (21x + 6y = 24) We get

Put y= -2 in x equation

Comparing these (x,y) values we can understand that they never meet at a point