While on a class trip to chicago, a group of 30 people paid $294 for admission to a play. if the tickets cost $9 for students and $15 for adults, how many students were in the group?
a. 4
b. 6
c. 16
d. 26

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

State if the two triangles are congruent. if they are, state how you know?