Took 3 of us in grade 10 but johns present age is 77.5 and his sister is 72.5
If you use for fingers and count bye five you should eventually reach 60 and how ever many fingers you have up is your answer. Witch =7
Answer:
(L-a)/d + 1 = n
Step-by-step explanation:
Let's isolate (n-1), and after that isolate n:
1) subtract a from both sides: L - a = (n-1)d
2) Divide both sides by d: (L-a)/d = n-1
3) Add 1 to both sides, to isolate n: (L-a)/d + 1 = n
X^2+4x+4 and there is no remainder
Range: lowest number subtracted from highest number
105.40 - 27.50 = $77.90
