The local grocery store is having a sale on watermelons. Ms. Jackson purchases 10 watermelons for a
school picnic. Each watermelon costs the same amount. She pays $39.90 for the watermelons. What
is the price, in dollars, of each watermelon?

$3.90 each watermelon.

Step-by-step explanation:

Did the math. I dont know how to show work on here.

10 glasses of juice could be made with 5 carrots, 1,500 orange juice, 2,000 papaya juice.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.