It’s D , -16.2
you replace X with -142 and get -0.2 (142 + 223)
a) 67=50+17
50×7+17×9=350+153=503$
b) 123=50+50+23
50×7+50×9+23×10=350+450+230=1030$
Answer:
it's answer c and why so many helps
Answer: the answer to your question is
Recall that when you multiply a decimal by a power of ten (10, 100, 1,000, etc), the placement of the decimal point in the product will move to the right according to the number of zeros in the power of ten. For instance, 4.12 · 10 = 41.2.
hope this helps for what you needed have a nice day! :)
