Which of these is NOT a way to think about finding ‐16−9? CLEAR CHECK The addition expression −16+−9 Changing the signs and the operation: 16+−9 The negative distance between ‐16 and 9 on the number line The number 9 units to the left of ‐16 on the number line

Me. i can't figure out this question. give an explanation too. .

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?