Answer:
x=-7
Step-by-step explanation:
add 4 to both sides. leaving you with x=-7
18$-8$book=20pencils that were 10$.
and Brian had 80 cards work: 80÷2= 40+10 new cards=50 cards
Answer: 32 meters
Explanation: The 4 meter pole casts a shadow of 5 meters. The towers unknown height casts a shadow of 40 meters. Now isolate the shadows. 5 and 40. 40 divided by 5 is 8, so 4 times 8 is 32.
Answer:
1.x^7
2.x^10
3.a^2
4. 5
Step-by-step explanation:
1. x^(5+2)=x^7
2.x^(5*2)=x^10
3.a^(5-3)=a^2
4. 5 * 1=5
