How many solutions does the equation have
y=2x^2+3x-10=0

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Which expression gives the exact value of x?