If u got a 40% discount, then u actually paid 60%..
60% of the total price is 45
0.60x = 45
x = 45 / 0.60
x = 75 <== original price
Realtions that are not functions is when a x value has multiple y values, the last one has the X value that has multiple y values
Answer:
9x4=36
Step-by-step explanation:
Answer:
because the 1st corner and the 2nd corner is places in a straight line which the total agle is 180° so since the 1st corner has same angle as the 13th one the 14th is must be have same angle as the 2nd corner. so that the 1st corner + the 14th corner is equal as 180°
The middle section is n(n+1)
The top row is n+2
The bottom row is 2n+1
So the rule for the total number of tiles will be the sum of the above rules...
s(n)=n(n+1)+n+2+2n+1
s(n)=n^2+n+n+2+2n+1
s(n)=n^2+4n+3
