Types of Electronic Bonds 1. Covalent bonds – 2 or more elements share electrons (ex: H2O) 2. Ionic bonds – strongest bonding. One element takes an electron from another molecule (ex: NaCl) 3. Hydrogen bonds – weakest form of bonding. Hydrogen atom interacts with an electronegative atom like nitrogen, oxygen, or fluorine
Sally is staying at a hotel that charges $88.50 per night plus tax. A 6% tax is applied to the room rate, and an additional onetime untaxed fee of $7.00 is charged by the hotel. Write an expression for Sally’s total charge, in dollars, for staying x nights.
x² + y² = 167 y = −3x Solve for x and y.
z(x) = 5x − 2 h(x) = 2 − 3z(x) What is the value of h(1)?
−2x + 3y = −10.5 3x + y = 5 Find the values of x and y.
On Wednesday, Alan sent x text messages per hour for 6 hours, and Tyler sent y text messages per hour for 3 hours. Write an expression for the total number of messages sent by Alan and Tyler on Wednesday.
If line m passes through the origin and has a slope of 1/8, then what is the y-coordinate of line m when x=16?
A restaurant offers salads for $7.25 each and drinks for $1.75 each. After selling a total of 198 salads and drinks in one day, the restaurant made $925.50. How many salads were sold that day?
William can sew at least 12 buttons per hour and at most 18 buttons per hour. What is a possible amount of time, in hours, that it could take William to sew 72 buttons?
The results of the extremely competitive math competition indicate/indicates that students need to do more work. The implication of the groups’ different projects suggest/suggests improvement is needed at the company. The student with different ideas study/studies day and night. The group of stellar athletes practice/practices together. The organizations with a female CEO show/shows growth potential.[…]