Each row, column, and diagonal in this math square puzzle has a sum of 15. Each number, I to 9, is used only once. Write and solve equations to complete the math square puzzle.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

300pi

step-by-step explanation:

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation:

answer:

c) the x-coordinate of the center of the circle increases by 3