How many positive integers greater than 30 but less than 50 are equal to the product of 7 and an even integer

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

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?