Diana and joby wrote the following proofs to prove that that vertical angles are congruent. who is correct?

What is the slope of the line perpendicular to the line whose equation is y 3x 4?

At Pinetop middle school, 372 students ride the bus to school. if this number is 60% of school enrollment, then hoe many students are enrolled at the school?

in geometry. the sum of the lengths of the two legs x and y in a triangle must be greater than the hypotenuse c

A paint store sells exterior paint for $28.25 a gallon and paint rollers for $6.25 each. Write an equation in standard form for the number of gallons p of paint and rollers r that a customer could buy with $145.

99% confidence interval for the population standard deviation

7h (67-9x) 7 if h=5 and x=8

Insert commas in the following numbers 13886 365 719463 40047209 2145739180 1783457

Write eighteen hundredths as a decimal.

What's 2+2 = ... ?

Find the product 2cd^4 (-4c^6d^5-c^3d)