Liam is paid $25/hr at full rate, and $18/hr at a reduced rate. the hours of work are paid at a ratio of 3: 1, full rate : reduced rate. for example, if he worked 4 hours, he would be paid 3 hours at full rate and 1 hour at reduced rate. calculate his pay for 6 hours of work.

4h30min full rate and 1h30 min reduced rate

So, for 6h of work Liam is owed $ 9×25/2+3×18/2=225/2+32=144.5

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629