Answer:
$ 82.40
Step-by-step explanation:
you divide
100 pennies in a dollar
8240/100=82.40
Answer:

Step-by-step explanation:
Given: sin x + cos x
To change the given trigonometry expression in term of sine only.
Trigonometry identity:-
Expression: 
We get rid of cos x from expression and write as sine form.
Expression:

Hence, The final expression is only sine function.
5(2x-3)-(x+8)=13
10x-15-x-8=13
9x-23=13
9x=36
x=4
5*6=30
and 6*5=30
basically we have to take Lcm of 5 and 6=30
30th day they both will be together