Write each ratio as a fraction in lowest terms I NEED HELP PLEASE

1. 50 cm:1 m
2. 7 g to 3 g
3. 250 mL:3L
4. 750 g:2 kg
5. 6 m:5 cm

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?