INVESTMENTS Downing the amount of an invested u S300 : invested at an in urustrale ol 6.75 kunipelunde Masally Juan $759.15

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.