Marcus said an equilateral triangle is also an isosceles triangle. Is he correct? Explain how you got this answer.

What is another way to write the equation 2/3(x+6)=-18?

The amount charged by colleges and vocational schools for courses is referred to as tuition fee interest none of the above asap

2. a family eats at a restaurant. the bill is $42. the family leaves a tip and spends $49.77. a. how much was the tip in dollars? b. how much was the tip as a percentage of the bill?