1.A head teacher wants to know whether performance in year 7 maths exams predicts GSCE (year 11) maths results. They have data on year 7 summer exams in maths, English and science, and GCSE (year 11) results in maths and English for a total of 460 students. What is the IV? A. Year 7 maths exam performance
B. GCSE Maths exam performance
C. Year 7 English exam performance
D. Year 7 exam performance across maths, English and science

its d

Step-by-step explanation:

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!