Answer: Split it into a trapezoid and rectangle and the answer is = 120
Step-by-step explanation:
Trapazoid is A = (a+b)/2 times h so (4+8) divided by 2 times 4 = 24
Rectangle is 12*8 = 96
96+24 = 120
All students will have a chair to their needs. So a 100% probability.
931 are the answer ................
Since c=15 and d=3, we replace the c and d variables with 15 and 3.
0.5x15-1.7x3
0.5x15=7.5
1.7x3=5.1
Now subtract.
7.5-5.1=2.4
---
hope it helps
