PLS HELP YEAR 8 MATHS

SEE BELOW

Explanation:

Mark bought 8 apples for 2.4$
Jenny bought 2 apple and 3 oranges for 2.4$.

Find how much is 1 apple:

8 apples = 2.4$
1 apple = 2.4/8
1 apple = 0.3$

Thus, 1 apple cost 0.3$

Find how much is 1 orange:

2 apple + 3 orange = 2.4$
2(0.3$) + 3 orange = 2.4$
0.6$ + 3 orange = 2.4$
3 orange = 2.4$ - 0.6$
3 orange = 1.8$
1 orange = 1.8$/3
1 orange = 0.6$

Thus, 1 orange cost 0.6$.

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.