The formula for voltage (in volts) is given by v = ir, where i is the current in amperes, and r is the resistance in ohms. if a light bulb uses 0.4 amperes of current at a voltage of 1.8 volts, the formula to find r is , and the resistance of the bulb is ohms.

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?