In 1998, scientists discovered that the expansion of the universe has been accelerating. What force is causing this phenomena?

It's dark energy

Explanation:

dark energy

Researchers discovered in 1998 that the universe is expanding at an accelerating rate — a surprising phenomenon believed to be due to a mysterious force called dark energy. Scientists don't know much about dark energy, except that it may be a property of the vacuum.

I hope it helped u!

Dark Energy for sure. Trust me it's right ;)

Explanation:

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

it's a b and