A student spent a total of 2.80 on pens and erasers. if the student bought exactly 8 items, how many pens and how many erasers did he buy?

To ? nd out how many students are unhappy with the dining hall food, you distribute a survey. which method of surveying would produce the least amount of bias in your data?

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

I’m really confused and need your assist me with this question i’ve never been taught