This is a literal equation e=mc sguare solve for c

E=mc sguare

solve for c

Rewrite equation

Mc^2=e

Divide both sides by m

C^2=e/m

Square root both sides to get c alone .

C= ± square root e/m

Withsquare root you need a positive and negative solution

C= square root em/m, - square root em/m

b) the dogs need to shift their focus to human scent.

40 is the final : )