Answer:
3
Step-by-step explan
1 x 4/2 + 1
4/2 + 1
4 divide by 2 is = 2
2+1 = 3
so the value of 1 x b/2 + 1 is = to 3
Using .25N, you set N equal to 18 for 18 quarters. so .25(18) = 4.50
(−64)+((−36)+20) simplify "()" first
(−64)+(-16) now "add" remaining #s
= -80
Answer:
Probability of atleast one of 12 student has food allergies ≈ 0.58 ( approx)
Step-by-step explanation:
Given: Probability of a children under age 5 has food allergies = 7%
=
To find : Probability of atleast one of 12 student has food allergies
Probability of a chindren under age 5 does not have food allergies = 
⇒ prob = 
now we find Probability of atleast one of 12 student has food allergies this means we have to find prob of 1 student, 2 student, 3 student, till 12 student have allergy out of 12 student of class then add all prob.
But instead of finding all these probability we find probability of student having no allergy.i.e., 0 student then subtract it from 1(total probability)
Probability of 0 student having allergy out of 12 student = 
Therefore, Probability of atleast one of 12 student has food allergies
= 
= 
≈ 0.58 ( approx)