Find the percent of decrease. Round to the nearest whole percent. old: 777 bikes; new: 613 bikes Group of answer choices

a 190%

b 40%

c 150%

d 21%

Aliaa is skating down a ramp. the wheels on her skateboard have diameters of 60 \text{ mm}60 mm60, space, m, m. what is the distance aliaa travels when her skateboard wheels make 202020 revolutions? round your answer to the nearest \text{mm}mmm, m.