Beth's studio is offering a special offer for photos. She is offering 7 different backrounds and 5 different poses in which the subject. how many different pictures are there to choose from?

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?