Please help me and pls answer all of them. I really need help... Plssssss

Answer:
Step-by-step explanation:
Ok, so if there is no number in front of a variable (the letters), there is always a one. So you multiply them like this:
7 x 1b x 4 x 1a x 2 = 56ba
1c x 5 x 1b x 4 x 1a = 20cba
Since there is only a 1 in front of the variables, you can basically just multiply the numbers without variables and then mutiply that times one. Don't forget to add the variables into the answer.
6 x 1p x 4 x 5 x 1w = 120pw
1t x 2 x 1t x 1s = [tex]2t^{2} s[/tex]
Please give me brainliest if I helped!