Maliha thinks of a number x write an expression for the number Maliha gets when she multiples the number by 3

Three times the difference of federico’s age, and 4, increased by 7, is greater than 37. what are possible values of federico’s age?

Answer this question only if you know the answer! 30 points and

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?