It will need 1.8 kilograms to have 25.0 g of nickel
58%-62%
just add 2 to 60
and subtract 2 from 60 to find the range of percents
Answer:
B is the variable and A is the numerical coefficient
we are given

Since, we have to find inverse of this function
step-1: we set f(x)=y

step-2: switch x and y

step-3: Solve for y

now, we can use quadratic formula


or
..............Answer
(12, 32) i think this is the right answer