Answer:
He paid $1.11
Step-by-step explanation:
2.50 * 0.4 (he paid for 40% of the original price, since it was a 60% discount) = 1
1 * 0.11 (11% sales tax) = 0.11
1 + 0.11 = 1.11
275$
37100 is already in the simplest form. It can be written as 0.37 in decimal form (rounded to 6 decimal places).
* is
(7x + 3)(x + 3)
= + 24x + 9