Myra’s stamp collection consisted of 120 stamps in October. In March, her collection grew to 138 stamps. Find the percent increase between October and March. (Points : 1) 15% 9% 18% 12%
@JReed231
15%
15%
thanks
The cost per minute for a conference phone call, originally $3.20, increased by 40%. What is the new price? (Points : 1) $4.58 $4.48 $3.60 $3.32
4.48 or 3.32
okay
let the new price be n. so as per info 40% rise means new price =(140)% of Old price or, n =140*3.2/100 or,n=$4.48
yea i say 4.48
Fred buys several shares of stock at $24 per share and sells them at $21.12 per share. What is the percent of decrease in the price of the stock? (Points : 1) 12.0% 11.5% 11.0% 10.5%
12%
thanks
Hannah earned $1536 in 8 years on an investment at a 4% simple interest rate. How much was Hannah’s investment? (Points : 1) $491.52 $4800 $3072 $768
She earns 4% simple interest each year. That's 32% after 8 years. Hannah started with $4800.
So wut i did was i mulitiplied 1536 times 8 and got 12288 then i divided by thatt and got C. 3072
thanks im going with 4800
Find the annual interest rate if a $7000 investment earns $840 annual simple interest in one year. (Points : 1) 12% 12.5% 13% 13.5%
12
12%
thanks
anytime
np
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