Your proportion should look something like this

After cross multiplication, you should end up with this equation

After dividing 4 on both sides, you should get that x=9
Answer:yes
Step-by-step explanation:divide each dimension
I believe its $6.95 but i did that in my head so i might be wrong
Answer:
Answer attached
Step-by-step explanation:
B)10+5(8)+2(12)=74
10+40+24=74