use the correct order of operations to calculate a) 1/3 / 1/2 +1/4 b) (3+1/2)/(2-1/2) c) 5 1/2*(41/2-7/2)/2 1/3 pls do in full process and Take LCM also​

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

Can some one explain this i got sent this. is this a threat i’m scared

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details