Answer:
36
Step-by-step explanation:
add the total that signed up for chemistry with the total that signed up for english which would be 20+16=36
Answer:
she has to give him 4 dollars each week for 11 weeks since he already has 7 dollars.
Step-by-step explanation:
4 x 11 = 44 +7 = 51 so now he had enough for a skateboard.
Answer:
3. Additive
4. 
5. Graph the linear line. Then, make the line dotted and shade below the line.
Step-by-step explanation:
3. Adding -15 to both sides to isolate the variable.
4.
H=3J, R=(1/2)J; times the R equation by 6 to get 6R=3j then substitute into the H equation to get H=6R
