Find all the powers of 4 in the range 4 through 1000

Calculator work
4^1=4
4^2=16
4^3=64
4^4=256
4^5=1024

so from 4 to 1000 is
4,16,64,256

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

when multiplying or dividing by a negative on both sides you have to flip the inequality sign. this rule only applies to multiplying or dividing by a negative number in inequality equations. this rule is really important.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

21

step-by-step explanation:

21-4