Answer:
7. Option D
9. Option B
10. Option C
Step-by-step explanation:
5 - substitute the numbers 1-10 for n in (3n-4) and add up all your answers. So (3(1)-4) + (3(2)-4)...
0.42z = 2.52
z = 2.52 / 0.42
z = 6
same as
z + 7.45 = 13.45
z = 13.45 - 7.45
z = 6
answer is top right z + 7.45 = 13.45
Cole would pay $25.30
Because 23/10=2.3
2.3+23=25.3
Hope this helped