I need help with electric current

A 1053Welectric toaster operates on a house-
hold circuit of 126 V.
What is the resistance of the wire that
makes up the heating element of the toaster?
Answer in units of Ω.

you know P (watts) and V (voltage), so you can work out I (current) using I = P/V (derived from P = IV)
then use the value of I worked out to work out R using R = V/I.

Now, plug the numbers in, I = P / V = 1053 / 126 = 8.36 Amps
and R = V / I = 126 / ( 8.36 ) =15.08 Ohms *Note / is dividing.

There is also a formula you may also consider to do it in one step:

P = V^2 / R so, R = V^2 / P = 126^2 / 1053 = 15.08 Ohms

Watts are a measure of Power, and we know that

P(Power)=I(Current)*V(Voltage)

Therefore
1053=I*126
I=8.36 amps

Now that you know Voltage and Current, use Ohm's Law

V=IR
126=8.36*R
R=15.1 ohms