What is 100-10d

for like terms.
please help will mark Brainliest to any correct!!

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.