Answer:
495 students are at Lincoln Middle School
Step-by-step explanation:
450/?
450 = 90%
450*90% = 450 * 0.90 = 405
450- 405 = 45
450+45 = 495
Answer:
b=6
Step-by-step explanation:
x=6
6+-2=4
2(6)+3(-2)=b
2x6=12
3x-2= -6
12+ -6+=6
b=6
What I'd do is add all the bills together and then find the probability of x with would be the left from subtracting $2 from the sum. I hope that makes sense