Forty students are in the science club. of those, 45% are girls. this percent increases to 56% after new girls join the club. how many new girls join?

Pls , the question is in the picture!

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16