Anumber has the digit 8 and 4 .to the nearest 10.the number round to 50.what is the number?

The four students in the table below each recorded the time and distance traveled while exercising. exercising distance (miles) time (minutes) gia 2 30 harris 5 50 ian 3 40 jackson 4 80 which list ranks the students from fastest walker to slowest walker? jackson, gia, ian, harris harris, jackson, ian, gia harris, ian, gia, jackson jackson, harris, ian, gia

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20