Simplify the expression. -3/8 - -1/10
2/9
-19/40
-3/8
19/40

19/40

Step-by-step explanation:  first we need the values in the numerator, so we can multiply in X where you multiply the denominators with numerator of the other value in the equation finally we resolve simple equation between both numerator, so the numerator equations will be.

(-10) * (-3) = 30

(-8) * ( -1) = 8

then we get this values in the numerator

30 + 8 = 38

in the denominator we only need to multiply both values.

(-8) * (-10) = 80

after we divide each result between 2

numerator 38/2 = 19

denominator 80/2 = 40

after this, we can place the numerator and the denominator into the equation and we get the following result

19/40

b. astronomers

the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.

414,000-9,000=405,000.

423,000+405,000=828,000.

423,000-405,000=18,

hope it