I believe the answer would be x20. Between the two parentheses there's a multiplication symbol. So you would just pretend that the parentheses aren't there cause the variable(s) (x) is/are like terms. So you would just multiply 10 times 2 and put out the x back in front of it
Answer:1/16807
Step-by-step explanation:
(7^-8)(7^3)
7^(-8+3)
7^(-5)
1/(7^5)
1/(7x7x7x7x7)=1/16807
There are 24 hours in a day, so if it chimes twice in an hour it will chime 24*2 or 48 times a day. There are 7 days in a week, so it will chime 48*7 or 336 times.