What is mass and solid and gas

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

Yvaries directly as x. y =90 when x=6. find y when x=13