Please help! summer school is really getting to me :(

What are the sotions to the quadratic equation 9x^2=4

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?