You have 32 grams of a radioactive kind of gold. if its half-life is 3 days, how much will be left after 6 days?

a. 5 grams
b. 4 grams
c. 16 grams
d. 8 grams

Plz me plz i will give a brain just plz

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27