B, y-intercept, because since the x coordinate for the ordered pair is 0, it is showing y-intercept
Answer:
The third, they are equivalent because the size of the shaded area is the same.
Answer:
Amount of Niobium-91 initially
= 300/91 =3.2967mol
2040 years = 3 ×680 = 3 half-lives
therefore, amount left = 0.4121mol
mass of Niobium-91 remaining = 0.4121 ×91 =37.5g
Please give brainliest
No . but she can buy 2 of the books but not all 3
