Aspherical balloon has a circumference of 21 cm. what is the approximate surface area of the balloon to the nearest square inch?

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

What is the product? a-3/15a × 5/a-3

Mila's dog weighs 4 pounds more than 8 times the weight of keiko's dog. which expression could be used to fine te weight of mila's dog?