Check the picture below
notice, the "a" side goes from -2 to 11
and the "b" side goes from 2 down to -4
Answer:
8x10^-6
Because the decimal point must be moved left 6 places in order to be equal when multiplied by the whole number the 10 must be to the -6th
Answer:
already know that the radius of the circle is 150
According to PEMDAS, the parentheses would go first.
3+1 = 2
42/2=21
Hope this helps!
The answer s b because the rest was spent on music books and travel books