How can the following expression be simplified and written without negative exponents? fraction numerator a to the power of negative 7 end exponent a to the power of 12 over denominator a to the power of negative 5 end exponent end fraction

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation:

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation:

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21

-7 + ? = 21

-7 + 28 = 21

hope it