(m+n)^2 - (m-n)^2 = 16 then mn is​

mn = 4

Step-by-step explanation:

(m+n)^2 = m^2 + 2mn + n^2

(m-n)^2 = m^2 - 2mn + n^2 multply the second equation by (-1) then subtract it from first equation

m^2 + 2mn + n^2 - m^2 + 2mn - n^2 = 16

4mn = 16 divide both sides by 4

mn = 4

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

the correct answers i think are b. and d.

give me brainliest if it is correct!