A basic cellular package costs $30 per month for 60 minutes of calling, with an additional charge of $0.50/min beyond that time. The cost formula would be C = 30 +0.50(x - 60), where is the cost measured in dollars and x is the number of calling minutes used. If you cannot have a bill greater than $80, what is the maximum
number of calling minutes you can use?
min
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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.

i would be happy to . most people on would also love to i'm sure. if you just want someone who has done algebra before and want a little more personal relationship than just begging strangers for , i can certainly be of service. i do have college myself so i might not be 24/7.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: