How many electrons are in the nucleus of an atom with the atomic number of 20

the measures of 2 angles are (5x+24) and (9x-7). what is the value of x if these angles are congruent?

Bottle contains 150% of water how much water will there be

Two dice are rolled. What is the probability that the sum of the numbers is exactly 10? What is the probability that the sum of the numbers is at least 10?

There are 15 yellow and 35 orange balls in a basket. How many more yellow balls must be added to make the yellow balls 65% in the basket?

Elijah wants to conduct a survey as to whether music CDs should be added to the items sold in the school store. Which sampling method will offer Elijah the best results? Interview every student in the school band.

What is the height of a triangle whose base is 8.6 centimeters and whose area is 79.12 square centimeters? round to the nearest tenth

Tanya likes to take walks around the pentagonal garden at her local park. The garden on the left has congruent sides. If Tanya starts at one vertex of the pentagon and walks all the way around the garden, how far has she walked in total?

The surface area of a rectangular prism is found using the formula SA = 2 (lw + lh + wh), where l is length, w is width, and h is height. What is the surface area (in square meters) of a rectangular prism with length 5 m, width 12 m, and height 6 m?.

If you are given the graph of h (x) = log Subscript 6 Baseline x, how could you graph m (x) = log Subscript 6 Baseline (x + 3) ?

Solve: y=-3x+5 5x-4y=-3