A watermelon weighs 8,475 grams. A scale measured the weight with an error of 12% under the actual weight. What was the measured weight?

Noah's oven thermometer gives a reading that is 2% greater than the actual temperature.

1. If the actual temperature is \(325^\circ\text{F}\), what will the thermometer reading be?
2. If the thermometer reading is \(76^\circ\text{F}\), what is the actual temperature?

It took 48 minutes to drive downtown. An app estimated it would be less than that. If the error was 20%, what was the app’s estimate?

A farmer estimated that there were 25 gallons of water left in a tank. If this is an underestimate by 16%, how much water was actually in the tank?

For each story, write an equation that describes the relationship between the two quantities.

1. Diego collected \(x\) kg of recycling. Lin collected \(\frac25\) more than that.

2. Lin biked \(x\) km. Diego biked \(\frac{3}{10}\) less than that.

3. Diego read for \(x\) minutes. Lin read \(\frac47\) of that.

For each diagram, decide if \(y\) is an increase or a decrease of \(x\). Then determine the percentage.

Lin is making a window covering for a window that has the shape of a half circle on top of a square of side length 3 feet. How much fabric does she need, rounding to the nearest tenth?