If an item weighs 45 kilograms, what is its weight in pounds? 20 63 90 99

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

What is the number 321,000,000 in scientific notation? also what is the number? ?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r