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
(5x^3-7)(2x^2+1 answerrrrrrrrrr
12A + 2 + A - 1 = a + 12a + 1 = 13a + 1
5^4 that is how to represent an exponent