Answer:
He spent $15.51
Step-by-step explanation:
0.55x28.2=15.51
Hope this helps
^_^
So another way to look at is 7x6=__ and so when you do this you get 42. Hope this is helpful.
X = (12 +- sqrt (144 -4(7)(3))/14
x = (12 + - sqrt (144 - 84))/14
x = (12 + - sqrt(60))/14
x = (12 + - 2sqrt 15))/14
x = (6 + - sqrt 15) / 7
84/56=1.5 - it is 1% of number
1.5*100=150
Answer: 150
Correct me if I am wrong but an equilateral has the same length on each side so wouldn’t it be 6 cm?