7 Thirty percent of the boats that traveled up the river on Monday were steam-powered. If 42 of the boats that traveled up the river were not
steam-powered, how many boats were there in all?

Which graph represents an even function?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit