@Use the formula: y = mw + c to find c if y=9, w=4 and m=2.
1
17
5

@Use the formula: v = u + 2as to find v if u=0, a=9.8 and s=20.
19.8
392
14.0

@Use the formula: v = u + at to find u if v=30, a=10 and t=3.
0
60
900

@Use the formula: y = mw + c to find w if y=12, m=2 and c=-4.
8
4
16

@Use the formula: v = u + at to find t if v=15, u=5 and a=2.
5
10
20

@Use the formula: A = bh to find b if A=40 and h=12.
6.67
120.0
3.33

@Use the formula: A = 4r to find r if A=50 and =3.14.
1.99
3.98
3.54

@Use the formula: y = mw + c to find c if y=2, m=3 and w=4.
-10
14
0.17

@Use the formula: A = 6y to find y if A=100.
4.08
24.5
16.7

@Use the formula:v = u + 2as to find s if v=0, u=3 and a=-9.
1
-18
-6