Marty and stewart are stuffing envelopes with index cards. they are putting x index cards in each envelope. when they are finished, marty has 15 envelopes and 4 extra index cards and stewart has 12 stuffed envelopes and 6 extra index cards. write an expression in standard form that represents the number of index cards the boys started with.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. using the technique in the model above, find the missing segments in this 30°-60°-90° right triangle. ab = 8 bc = 4 cd =

Jessica is a custodian at oracle arena.she waxes 20 m2 of the floor in 3/5 of an hour. jessica waxes the floor at a constant rate.at this rate how many sqaures meters can she wax per hour

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)