6. a survey showed that 24% of a nursery's mail-order customers spent more than $200 on plants each spring. predict how many of 145,000 mail-order customers will spend less than $200 on plants next spring.

110,200

Step-by-step explanation:

24% spends more than 200, so

100 - 24 = 76% spends less than 200.

If there are 145,000 mail order customers, we can expect 76% of them to spend LESS THAN $200. So,

145,000 * 0.76 = 110,200 customers

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.