umm,if you are in english math,please help me with my math h

来源：学生作业帮编辑：灵鹊做题网作业帮分类：英语作业时间：2024/05/03 02:56:31

umm,if you are in english math,please help me with my math homework!
1.principal:$400 interest rate:7% compounded:annually time(years):3 balance:(find the s)
2.principal:$8,000 interest rate:5% compunded:annually time(years):9
3.principal:$1,200 interest rate:4% compounded:semi-annually time(years):2
4.principal:$50,000 interest rate:6% compounded:semi-annually time(years):6
umm,the answer not the equation please.because i don't get your equation...

$umm,if you are in english math,please help me with my math h$

1.400*(1+7%)^3=490.02
2.8000*(1+5%)^9=12410.63
3.1200*(1+2%)^4=1298.92
4.50000*(1+3%)^12=71288.04

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