Complete the equation with a number that makes the expression on the right side of the equal side equivalent to the expression on the left side​

What is the area of the triangle 10 13 12

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park what is the unit rate and what does it represent in the context of the situation?