Tickets at a particular movie theater have different rates for adults and children on Monday the theater Sold 5 adult tickets and seven children tickets for $88 the next day the theater sold 6 adult tickets and 4 child tickets for $88. What is the price for the adult ticket and the price for the child ticket? Please help me I only have 10 minutes to get this and I'm so confused!

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle. what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle. what is the measure of angle a? enter your answer in the box. m∠a= 3.)quadrilateral abcd is inscribed in this circle. what is the measure of angle b? enter your answer in the box. m∠b= °4.)quadrilateral abcd is inscribed in this circle. what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle. what is the measure of angle c? enter your answer in the box.°