Help T - T Mhanifa your so gènius at Màth

find the areà of each shaded regiøn​

If 25% of y is 30, what is 60% of y?

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?