A teacher spends $150 on school supplies for the classroom, folders are $0,25 each and notebooks are $2.50 each This linear relationship can be represented by 0.25x +2.50y = 150, where x represents the number of folders and
y represents the number of notebooks
Identify the x-intercept Explain what this means in the context of the problem.
2 Identify the y-intercept. Explain what this means in the context of the problem.
Identify one additional combination of school supplies that the teacher could have purchased with their budget.
Explain what this means in the context of the problem

Icould really use some with this question.

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.