Answer:
.99
Step-by-step explanation:
He paid $8.50 + 6% sales tax. So
8.50 x .06 = .51
8.50 + .51 = 9.01 total he paid
$10.00-$9.01=.99
The exponent is a positive number, so you move the decimal point, that many places to the right:
3.276 x 10^9 = 3,276,000,000
141 / 3 = 47
45 + 47 +49 = 141
10^2 = 5^2 +h^2
100 = 25 +h^2
75 = h^2
h = sqrt75 = 8.66 = 8.7 m
