Dave receives a salary of $200 a week plus a commission of 10% of his weekly sales. an equation y = mx + 6 represents dave's weekly earnings. the y-intercept is dave's base salary. the slope of the line is his commission. write an equation representing dave's weekly earnings. a. y = -0.14 - 200 b. y = 0.1x- 200 c. y = -0.1x + 200 d. y = 0.1x+ 200

i think that you should ask google for the answer to that problem because if we don't know it google does

susie has 7 apples

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4