A radioactive isotope decays at the rate indicated by the exponential function ,where 't' is the time in year and A(t) is the amount of the isotope, in grams, remaining. How long will it take for the isotope to be reduced to half of its original amount?

Find an equation for the linear function which has slope -10 and x-intercept -7

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41