Find the modulus.
5. 3 + 4i
6. −2 − i
7. 7
8. 4i

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Write as a product of two polynomials. 2(3–b)+5(b–3)^2

Anita has a success rate of 80% on free throws in basketball. she wants to know the estimated probability that she can make exactly four of five free throws in her next game. how can she simulate this scenario? categorize each simulation of this scenario as correct or incorrect.