Tickets to a movie cost $7 for adults and $5 for students . A group of friends purchased 8 tickets for $52, write a system of equations to represent this situation

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.