John needs to figure out the heat change, in watts, of circuit with 20 ohms of resistance and thats carrying a current of 5 amps. What is his result? A) 250
B) 125
C) 500
D) 100

What is [tex] {7}^{98 + \sqrt{4} } - 3 \times (64 \div 2 + 4 - 36) \times a = a + 36[/tex]?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Which linear inequality is represented by the graph?