Answer:
7
Step-by-step explanation:
Add 1 to six and u get seven.
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The value of x is 1 & y is 2 (a).
Steps are attached.
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꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂
Answer with Step-by-step explanation:
Let 
Substitute n=2
Then 

Hence, P(n) is true for n=2
Suppose that P(n) is true for n=k >1

Now, we shall prove that p(n) is true for n=k+1

LHS

Substitute the value of P(k)






LHS=RHS
Hence, P(n) is true for all n >1.
Hence, proved
470,000 because when you round the number up, you get 470,000. it is reasonable
Answer:
Let x = cost of your friend's lunch.
x + x + 3 = 19
x= 8