Answer:
a
Step-by-step explanation:
2x +7= 19
2x= 19 -7 <em>(-7 on both sides)</em>
2x= 12 <em>(</em><em>simplify</em><em>)</em>
x= 12 ÷2
x= 6
X = 153 = 17* 9, so when <span>y = 13, x= 21*13= 273
x= 17 18 19 20 21
y= 9 10 11 12 13</span>
Answer:two dimensional shapes
Step-by-step explanation:
Answer:
Step-by-step explanation:
get them some multiplication charts and use some examples like oreos or any type of cookies.