2x+4=4(x+1)−2 solve this equation

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

What is the domain of the of the exponential function shown below?

Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2