Kyung is building a triangular pool in his backyard. he knows that side f is 12 m and that both angles g and f are 40°, which means that angle d is 100°. what is the length of side d? round the answer to the nearest tenth.

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Percent increase and decrease. original number: 45 new number: 18

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?