How do you write 304,800,400 in expanded form and standard

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?