Answer:
9)x=135º
10)x=2 23º
11)x=2 122º
Step-by-step explanation:
15x-7=19x-15
-4x=-8
4x=8
x=2
54x+14=43x+36
11x=22
Planet D
1.5*10^9 = 1,500,000,000
1.07*10^8 = 107,000,000
5.7*10^7 = 57,000,000
2.29*10^6 = 2,290,000
It has the least amount.
-7150
7.15 * 10^-3
7.15 * (-10*-10*-10)
7.15 * -1000