4. a sporting-goods manufacturer has spent $1000.00 researching a new
product. it will cost them $4.50 to manufacture the item that they will
sell for $12.00. how many items must they sell to break even?

If square root x = -7, then x= -49 true or false

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

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.