What is the exact distance between the point (-2,-1) and the point (6,8) units

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

On the day a coffee shop first opened, it had 140 customers. 65% of the customers ordered a large coffee. how many customers ordered a large coffee? enter your answer in the box.

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question