How many solutions does the equation have?

5(n-2)=5n-10

a)many solutions
b)no solutions
c)1 solution

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Find the missing dimension! need asap! tiny square is a =3025 in ²