34 is 3 tens and 4 ones whereas 43 is 4 tens and 3 ones they are different because they have different values.
Answer:
120
Step-by-step explanation:
From 20, choose 3:
₂₀C₃ = 120
Here we use combinations instead of permutations because the order doesn't matter.
Answer:
(i only solved for the equation)
27
Step-by-step explanation:
4 1/2= 9/2
9/2*6=27
A= (a+b)/2*h
A=(12+15)/2*5
A=(27/2)*5
A=13.5*5
A=67.5in