Atriangle pyramid with an equilateral base has a side length of 10 centimeters and a surface area of 214.5 square meters. find its slant height

In trapezoid efgh, m∠gfe=63∘. identify m∠ghe. !

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. find the solution and explain what it means. i'll you if you me

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults. how many students and adults went if the ticket charge was $42.75