R a t e ME 1- 10 cuz why not do this some more

How many $20 bills do you need to have to make $280

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?