What is the interval when written in the form of (lower limit, upper limit)(lower limit, upper limit) ?
45 m±1.5 m
a. (43.5, 46.5)
b. (45, 45.5)
c. (45, 46.5)
d. (43.5, 45)
! i suck at

Basically, you take the 45 and subtract it by 1.5, which gives you 43.5. Then, you take the 45 again and add it by 1.5, giving you 46.5. So the interval when in written form would be (43.5, 46.5).