Student Government has a Brownie Bake Sale. They sell chocolate walnut brownies for $3 each. They sold 150 Blondie brownies. The Student Government made a total of $450, and sold a total of 225 brownies at the bake sale. How many chocolate walnut brownies did they sell?
How much did each Blondie cost?
PLEASE!!

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left