What is the a-value in the following quadratic equation?

y=-x^2+x-20

Find the value

Mei is writing an inequality for the expression at least 10 hours of community service. Find her mistake and correct it

What is the number name for 3.252

Rachael has a rope 5 m 32 cm long that she cut into two pieces. One piece is 249 cm long. How many centimeters long is the other piece of rope?

Determine which of the following are equivalence relations and/or partial ordering relations for the given sets: A = { lines in the plane }, and r defined by x r y if and only if x is parallel to y. Assume every line is parallel to itself.

Write an exponential growth function to model the situation. A population of 422,000 increases by 12% each year.

A manufacture of skateboards offered a 5/2/1 chain discount too many customers. Bobs sporting goods ordered 20 skateboards for a total of $625 list price. What was the net price of the skateboards?

What's is the denominator of 23/24?

A zoo has 35 exhibits 4/7 of them are mammals how many mammal exhibits are there

He price of apples went from $0.30 per lb to $0.90 per lb in three years. Find the rate of change of the price of apples. A) $0.10 per pound per year B) $0.20 per pound per year C) $0.30 per pound per year Eliminate D) $0.40 per pound per year

How are the locations on a coordinate grid different for the ordered pairs (7,0) (0,7)