Bạn Nam mua 10 cây bút bi gồm hai loại bút bi xanh và bút bi đỏ.Giá tiền một cây bút bi xanh là 4 nghìn đồng, giá tiền một cây bút bi đỏ là 5 nghìn đồng. Tổng số tiền bạn Nam phải trả là 43 nghìn đồng. Hỏi bạn Nam đã mua bao nhiêu cây bút bi xanh, bao nhiêu cây bút bi đỏ

Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.

Full year - williamshow many square inches are in 60 square feet? 5 square inches72 square inches720 square inche8.640 square inches

The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)