Using the discriminant, determine the number of real solutions.
-4x^2+20x-25=0

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250

Simplify using positive exponents only.