What should be done to these equations in order to solve a system of equations by elimination? I- 3x + 2y = 16
12x + 5y = 21
Choose one correct

Multiply the first equation by 2 and the second equation by 3.

Multiply the first equation by 3.

O Nothing needs to be done, since they both equal have 2's and 3's for coefficients.

O Multiply the first equation by
3 and the second equations by 2​

Valentino starts with a population of 1,500 amoebas that increases 35% in size every hour for a number of hours, h. the expression 1,500(1+0.35)h finds the number of amoebas after h hours. which statement about this expression is true? a. it is the initial population raised to the growth factor after h hours. b. it is the sum of the initial population and the percent increase. c. it is the sum of the initial population and the growth factor after h hours. d. it is the product of the initial population and the growth factor after h hours.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

A50% increase followed by 33 1/2% decrease