Solve the system of equations using (a) substitution and (b) Elimination

-x-9y = 16

10x+20y=20

A building is 139 ft tall. at noon it cast a shadow a 219 - ft. what is the sun's angle of elevation at that time.

How many integers from 1 to 700 are divisible by 2, 5 and 7

The length of a rectangle is 3 cm less than twice the width. If the area of the rectangle is 54 cm², what is the width of the rectangle? 54 cm? - 2W-3- 03 cm O 6 am O9 cm 18 cm

Dylan drake and jade are sharing 2 small pieces equally after their lacrosse game. how much does each person get?

A girl walks 5000 meters in one hour if the girl walks the same speed for 4 hours how many kilometers will she have walked?

4/sqrt (2) + 10 Is this rational or not?

How to find the roots of h (x) = 2x^2 + 26

The bull's eye on an archery target has a radius of 3 inches. The entire target has a radius of 9 inches. To the nearest 10th, find the area of the target outside the bull's eye.

Which measure is equivalent to 110mL?

13,006,017 in word form