Abeta particle is a(n)
a. photon
c. helium nucleus
b. electron
d. hydrogen nucleus

The answer is indeed letter b. electron.

Explanation:

A beta particle is emitted when there is beta decay - a type of radioactive disintegration of an atomic nucleus. A beta particle can be a spontaneously emitted, high-speed and high-energy, electron (negative charge) or positron (positive charge). Since among the options we have electron, that is the correct answer.

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50