The answer would be $42.84
Because $3.57 · 12 = $42.84
Answer:
9 more than 3 times y; first option
Step-by-step explanation:
3y is 3 times y, and +9 represents 9 more.
Answer:
11
Step-by-step explanation:
First you would have to add up all of the kids who do do chores, and all of the kids who do mot do chores. 24+8=32 and 27+16=43. It is then asking how many more... so you would subtract 32 from 43 and that would be 11.
8x - 9y + 2 = 0
-9y = -8x - 2
y = 8/9x + 2/9.....the slope here is 8/9. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So our perpendicular line will need a slope of -9/8 (see how I flipped the slope and changed the sign)
y = mx + b
slope(m) = -9/8
(-7,-9)...x = -7 and y = -9
now we sub and find b, the y int
-9 = (-9/8)(-7) + b
-9 = 63/8 + b
-9 - 63/8 = b
-72/8 - 63/8 = b
-135/8 = b
so ur perpendicular equation is : y = -9/8x - 135/8