Helpp , im taking a test and I dont get the question An object Is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. The equation for the object's heights at time t seconds after launch is s(t) = -4.9t² +19.6t+58.8, where s is in meters. How high will the object be after 3 seconds?

98.40 feet
333.69 feet
73.5 feet
161.7 feet

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.