Which represents the compound inequality in interval notation?
x greater than or equal to -3 and x < 1
option a: x e (-infinety, -3]
option b: x e (-3,1)
option c: x e [-3,1)
option d: x e (1, infinety)

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.