The intrest on an investment varies directly as the rate of intrest. If the intrest is $53 when thw inntrest rate is 5%, find the intrest when the rate is 3.8%.    The intrest when the rate of intrest is at 3.8% is $_____.

The half-life of Radon-222 is 3.8 days. A 34-gram sample of Radon-222 is monitored for one day. How long will it take for the sample to be 15% of the initial amount? (rounded to the nearest hundredths) ​

If the player knives normally sell for $150 and the prices are now selling at 1/3 less than the normal price, how much do they cost now?

Worried about going over her storage limit, Wendy monitored the number of undeleted voicemail messages stored on her phone each day. Voicemail messages on Wendy's phone Day Voicemail messages Tuesday 19 Wednesday 8 Thursday 13 Friday 9 Saturday 22 According to the table, what was the rate of change between Thursday and Friday? voicemail messages per day

a manufacturer can produce a commodity at a cost of P2.00 per unit at a selling price of P5.00 each consumers have been buying 4,000 pieces a month for each price. P1.00 increase in the price, 400 fewer pieces will be sold each month. at what price a piece will the total profit be maximised

If 3/x – 3 + 10 = 22, what is the value of x – 3 ? %3D

Find the appropriate value of t  for 95% CI with n=31.

Suppose the total income in dollars from a machine is given by the following. I= 10e0.5t, 0sts 6, tin hours Find the average income (in dollars) over this 6-hour period. (Round your answer to the nearest cent.) $