Which statement about chert is true? a. it can only form chemically. b. it can only form organically. c. it can form organically or chemically.

You are only allowed to use tutors that your school recommends. t / f

Find the area of a triangle with a = 174 b = 138 and c = 188 round to the nearest tenth

Can someone me plz, i need it asap. you can do as much or little as you want. i’d rather have some answered than nothing. questions(16-23-25-27-29) doesn’t need to be done. {30 points}