Use substitution to solve the system of equations. Write your solution in decimal form. y=-10x-6.8
-50x-10.5y=60.4

can you add an image ?

step-by-step explanation:

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: