Ma. gartlans bought x number of shirts for the new members of her chorus. the cost for x number of shirt ,including $3.99 shipping ,was 77.49. each shirt cost $12.25. there was no sales tax on the purchase

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.