At his bake sale, Mr. Heftwhistle sold 30% of his pies to one friend. Mr. Heftwhistle then sold 60% of the
remaining pies to another friend. What percent of his
original number of pies did Mr. Heft whistle have left?
A) 10%
B) 18%
C) 28%
D) 36%

If point e(5, h) is on the line that contains a(0, 1) and b(−2, −1), what is the value of h? a)-1 b)0 c) 1 d) 6 !

Scientists observed a rock stratum and discovered some fossils. the image shows the fossils they discovered. what can you interpret from the image? an illustration showing layers rock with fossils embedded in some rock layers1. the dinosaur and the mammoth existed after the trilobites.2. the dinosaur and the armored fish existed before the trilobites.3. the trilobites and the armored fish died before the dinosaur.4. the trilobites and the armored fish were born after the dinosaur.5. the early mammoth is older than the trilobites.

Carbon dioxide can be produced form what type of power generation?