What is y = - 3x2 + 12x - 21 in vertex form?

the ratio of davids typing speed to lisas is 11:9. Lisa can type 54 words per minute if david and lisa work together to type 4800 words article, how many minutes are needed

What partial product can be used to find 26x4

kelly has $320 dimes and quarters. the total number of coins she has is 4 less than twice the number of dimes she has. which system of equations can determine d, the number of dimes, and q the number quarters, that kelly has

Below are the survey results of 60 students out of 1250

Cost to store, 20$, markup 15%

Which is the smallest 5 digit number that ends in 9 and reads the same forward as well as backwards

Circle the tens digit in each number 31, 94, 17,

345mi + 3hr + 15 mph the slowest car traveled

Describe the values of c for which the equation has no solution. |x+8|=c

A prism of height 12" has a rhombus with diagonals 6" and 8" for a base. Find the volume