Drag equations to each row to show why the equation of a straight line is y = mx + b,
where m is the slope and b is the y-intercept.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!