Nia Cut 1 1/4 foot long pieces of ribbon from a spool of ribbon. She cut 6 separate pieces How much Ribbon did she cut

Can some one me, i’ve been asking for so long

Acertain standardized? test's math scores have a? bell-shaped distribution with a mean of 520 and a standard deviation of 105. complete parts? (a) through? (c)

Can someone me do math because i am having a breakdown rn because i don’t get it