How many fourths are equal to 1/2? Please help!

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

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?